X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Facl.c;h=50511134b12f55537979035c1bc034cc1eae0c75;hb=17f95a3fd30247a0735a3526d85b46178304748d;hp=c94273782149999d628a3fd7b8911842bbbaf330;hpb=3a31fead5e3fd7672df4703ef11445d162038f0e;p=openldap diff --git a/servers/slapd/acl.c b/servers/slapd/acl.c index c942737821..50511134b1 100644 --- a/servers/slapd/acl.c +++ b/servers/slapd/acl.c @@ -1,7 +1,7 @@ /* acl.c - routines to parse and check acl's */ /* $OpenLDAP$ */ /* - * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved. + * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved. * COPYING RESTRICTIONS APPLY, see COPYRIGHT file */ @@ -14,6 +14,36 @@ #include #include "slap.h" +#include "sets.h" +#include "lber_pvt.h" + +#define ACL_BUF_SIZE 1024 /* use most appropriate size */ + +/* + * speed up compares + */ +static struct berval + aci_bv_entry = BER_BVC("entry"), + aci_bv_br_entry = BER_BVC("[entry]"), + aci_bv_br_all = BER_BVC("[all]"), + aci_bv_access_id = BER_BVC("access-id"), + aci_bv_anonymous = BER_BVC("anonymous"), + aci_bv_public = BER_BVC("public"), + aci_bv_users = BER_BVC("users"), + aci_bv_self = BER_BVC("self"), + aci_bv_dnattr = BER_BVC("dnattr"), + aci_bv_group = BER_BVC("group"), + aci_bv_role = BER_BVC("role"), + aci_bv_set = BER_BVC("set"), + aci_bv_set_ref = BER_BVC("set-ref"), + aci_bv_grant = BER_BVC("grant"), + aci_bv_deny = BER_BVC("deny"), + + aci_bv_group_class = BER_BVC(SLAPD_GROUP_CLASS), + aci_bv_group_attr = BER_BVC(SLAPD_GROUP_ATTR), + aci_bv_role_class = BER_BVC(SLAPD_ROLE_CLASS), + aci_bv_role_attr = BER_BVC(SLAPD_ROLE_ATTR); + static AccessControl * acl_get( AccessControl *ac, int *count, @@ -23,12 +53,14 @@ static AccessControl * acl_get( int nmatches, regmatch_t *matches ); static slap_control_t acl_mask( - AccessControl *ac, slap_access_mask_t *mask, + AccessControl *ac, slap_mask_t *mask, Backend *be, Connection *conn, Operation *op, Entry *e, AttributeDescription *desc, struct berval *val, - regmatch_t *matches ); + regmatch_t *matches, + int count, + AccessControlState *state ); #ifdef SLAPD_ACI_ENABLED static int aci_mask( @@ -45,11 +77,21 @@ static int aci_mask( #endif static int regex_matches( - char *pat, char *str, char *buf, regmatch_t *matches); + struct berval *pat, char *str, char *buf, regmatch_t *matches); static void string_expand( - char *newbuf, int bufsiz, char *pattern, + struct berval *newbuf, struct berval *pattern, char *match, regmatch_t *matches); +typedef struct AciSetCookie { + Backend *be; + Entry *e; + Connection *conn; + Operation *op; +} AciSetCookie; + +SLAP_SET_GATHER aci_set_gather; +static int aci_match_set ( struct berval *subj, Backend *be, + Entry *e, Connection *conn, Operation *op, int setref ); /* * access_allowed - check whether op->o_ndn is allowed the requested access @@ -74,36 +116,78 @@ access_allowed( Entry *e, AttributeDescription *desc, struct berval *val, - slap_access_t access ) + slap_access_t access, + AccessControlState *state ) { + int ret = 1; int count; - AccessControl *a; + AccessControl *a = NULL; + #ifdef LDAP_DEBUG char accessmaskbuf[ACCESSMASK_MAXLEN]; #endif - slap_access_mask_t mask; + slap_mask_t mask; slap_control_t control; + const char *attr; + regmatch_t matches[MAXREMATCHES]; + int st_same_attr = 0; + int st_initialized = 0; + static AccessControlState state_init = ACL_STATE_INIT; - const char *attr = desc ? desc->ad_cname->bv_val : NULL; + assert( e != NULL ); + assert( desc != NULL ); + assert( access > ACL_NONE ); + + attr = desc->ad_cname.bv_val; + + assert( attr != NULL ); - regmatch_t matches[MAXREMATCHES]; + if( state && state->as_recorded && state->as_vd_ad==desc) { + if( state->as_recorded & ACL_STATE_RECORDED_NV && + val == NULL ) + { + return state->as_result; + + } else if ( state->as_recorded & ACL_STATE_RECORDED_VD && + val != NULL && state->as_vd_acl == NULL ) + { + return state->as_result; + } + st_same_attr = 1; + } if (state) { + state->as_vd_ad=desc; + } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, ENTRY, + "access_allowed: %s access to \"%s\" \"%s\" requested\n", + access2str( access ), e->e_dn, attr ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: %s access to \"%s\" \"%s\" requested\n", - access2str( access ), - e->e_dn, attr ); + access2str( access ), e->e_dn, attr ); +#endif + if ( op == NULL ) { + /* no-op call */ + goto done; + } + + if ( be == NULL ) be = &backends[0]; assert( be != NULL ); - assert( e != NULL ); - assert( attr != NULL ); - assert( access > ACL_NONE ); /* grant database root access */ - if ( be != NULL && be_isroot( be, op->o_ndn ) ) { + if ( be != NULL && be_isroot( be, &op->o_ndn ) ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, INFO, + "access_allowed: conn %lu root access granted\n", + conn->c_connid, 0, 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= root access granted\n", 0, 0, 0 ); - return 1; +#endif + goto done; } /* @@ -111,62 +195,122 @@ access_allowed( * by ACL_WRITE checking as any found here are not provided * by the user */ - if ( access >= ACL_WRITE && is_at_no_user_mod( desc->ad_type ) ) + if ( access >= ACL_WRITE && is_at_no_user_mod( desc->ad_type ) + && desc != slap_schema.si_ad_entry + && desc != slap_schema.si_ad_children ) { - Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:" +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: conn %lu NoUserMod Operational attribute: %s " + "access granted\n", conn->c_connid, attr , 0 ); +#else + Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:" " %s access granted\n", attr, 0, 0 ); - return 1; +#endif + goto done; } /* use backend default access if no backend acls */ if( be != NULL && be->be_acl == NULL ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: backend default %s access %s to \"%s\"\n", + access2str( access ), + be->be_dfltaccess >= access ? "granted" : "denied", + op->o_dn.bv_val ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: backend default %s access %s to \"%s\"\n", access2str( access ), - be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn ); - - return be->be_dfltaccess >= access; + be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn.bv_val ); +#endif + ret = be->be_dfltaccess >= access; + goto done; #ifdef notdef /* be is always non-NULL */ /* use global default access if no global acls */ } else if ( be == NULL && global_acl == NULL ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: global default %s access %s to \"%s\"\n", + access2str( access ), + global_default_access >= access ? "granted" : "denied", + op->o_dn.bv_val ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: global default %s access %s to \"%s\"\n", access2str( access ), - global_default_access >= access ? "granted" : "denied", op->o_dn ); - - return global_default_access >= access; + global_default_access >= access ? "granted" : "denied", op->o_dn.bv_val ); +#endif + ret = global_default_access >= access; + goto done; #endif } - ACL_INIT(mask); - memset(matches, '\0', sizeof(matches)); - + ret = 0; control = ACL_BREAK; - a = NULL; - count = 0; - while( a = acl_get( a, &count, be, op, e, desc, MAXREMATCHES, matches ) ) + if( st_same_attr ) { + assert( state->as_vd_acl != NULL ); + + a = state->as_vd_acl; + mask = state->as_vd_acl_mask; + count = state->as_vd_acl_count; + AC_MEMCPY( matches, state->as_vd_acl_matches, + sizeof(matches) ); + goto vd_access; + + } else { + a = NULL; + ACL_INIT(mask); + count = 0; + memset(matches, '\0', sizeof(matches)); + } + + while((a = acl_get( a, &count, be, op, e, desc, + MAXREMATCHES, matches )) != NULL) { int i; for (i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: match[%d]: %d %d ", + i, (int)matches[i].rm_so, (int)matches[i].rm_eo ); +#else Debug( LDAP_DEBUG_ACL, "=> match[%d]: %d %d ", i, - (int)matches[i].rm_so, (int)matches[i].rm_eo ); - + (int)matches[i].rm_so, (int)matches[i].rm_eo ); +#endif if( matches[i].rm_so <= matches[0].rm_eo ) { int n; for ( n = matches[i].rm_so; n < matches[i].rm_eo; n++) { Debug( LDAP_DEBUG_ACL, "%c", e->e_ndn[n], 0, 0 ); } } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, ARGS, "\n" , 0, 0, 0 ); +#else Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 ); +#endif } + if (state) { + if (state->as_vi_acl == a && (state->as_recorded & ACL_STATE_RECORDED_NV)) { + Debug( LDAP_DEBUG_ACL, "access_allowed: result from state (%s)\n", attr, 0, 0 ); + return state->as_result; + } else if (!st_initialized) { + Debug( LDAP_DEBUG_ACL, "access_allowed: no res from state (%s)\n", attr, 0, 0); + *state = state_init; + state->as_vd_ad=desc; + st_initialized=1; + } + } + +vd_access: control = acl_mask( a, &mask, be, conn, op, - e, desc, val, matches ); + e, desc, val, matches, count, state ); if ( control != ACL_BREAK ) { break; @@ -176,24 +320,53 @@ access_allowed( } if ( ACL_IS_INVALID( mask ) ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: conn %lu \"%s\" (%s) invalid!\n", + conn->c_connid, e->e_dn, attr ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: \"%s\" (%s) invalid!\n", e->e_dn, attr, 0 ); - ACL_INIT( mask ); +#endif + ACL_INIT(mask); } else if ( control == ACL_BREAK ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "access_allowed: conn %lu no more rules\n", conn->c_connid, 0,0 ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: no more rules\n", 0, 0, 0); - ACL_INIT( mask ); +#endif + + goto done; } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, ENTRY, + "access_allowed: %s access %s by %s\n", + access2str( access ), ACL_GRANT( mask, access ) ? "granted" : "denied", + accessmask2str( mask, accessmaskbuf ) ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: %s access %s by %s\n", access2str( access ), ACL_GRANT(mask, access) ? "granted" : "denied", accessmask2str( mask, accessmaskbuf ) ); +#endif + + ret = ACL_GRANT(mask, access); - return ACL_GRANT(mask, access); +done: + if( state != NULL ) { + /* If not value-dependent, save ACL in case of more attrs */ + if ( !(state->as_recorded & ACL_STATE_RECORDED_VD) ) + state->as_vi_acl = a; + state->as_recorded |= ACL_STATE_RECORDED; + state->as_result = ret; + } + return ret; } /* @@ -218,8 +391,11 @@ acl_get( assert( e != NULL ); assert( count != NULL ); + assert( desc != NULL ); + + attr = desc->ad_cname.bv_val; - attr = desc ? desc->ad_cname->bv_val : NULL; + assert( attr != NULL ); if( a == NULL ) { if( be == NULL ) { @@ -234,24 +410,34 @@ acl_get( a = a->acl_next; } - dnlen = strlen(e->e_ndn); + dnlen = e->e_nname.bv_len; for ( ; a != NULL; a = a->acl_next ) { (*count) ++; - if (a->acl_dn_pat != NULL) { + if ( a->acl_dn_pat.bv_len || ( a->acl_dn_style != ACL_STYLE_REGEX )) { if ( a->acl_dn_style == ACL_STYLE_REGEX ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_get: dnpat [%d] %s nsub: %d\n", + *count, a->acl_dn_pat.bv_val, + (int) a->acl_dn_re.re_nsub ); +#else Debug( LDAP_DEBUG_ACL, "=> dnpat: [%d] %s nsub: %d\n", - *count, a->acl_dn_pat, (int) a->acl_dn_re.re_nsub ); - + *count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub ); +#endif if (regexec(&a->acl_dn_re, e->e_ndn, nmatch, matches, 0)) continue; } else { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, "acl_get: dn [%d] %s\n", + *count, a->acl_dn_pat.bv_val, 0 ); +#else Debug( LDAP_DEBUG_ACL, "=> dn: [%d] %s\n", - *count, a->acl_dn_pat, 0 ); - - patlen = strlen( a->acl_dn_pat ); + *count, a->acl_dn_pat.bv_val, 0 ); +#endif + patlen = a->acl_dn_pat.bv_len; if ( dnlen < patlen ) continue; @@ -261,40 +447,40 @@ acl_get( continue; } else if ( a->acl_dn_style == ACL_STYLE_ONE ) { - char *rdn; int rdnlen = -1; if ( dnlen <= patlen ) continue; - if ( e->e_ndn[dnlen - patlen - 1] != ',' ) + if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) ) continue; - rdn = dn_rdn( NULL, e->e_ndn ); - if ( rdn != NULL ) { - rdnlen = strlen( rdn ); - ch_free( rdn ); - } + rdnlen = dn_rdnlen( NULL, &e->e_nname ); if ( rdnlen != dnlen - patlen - 1 ) continue; } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) { - if ( dnlen > patlen && e->e_ndn[dnlen - patlen - 1] != ',' ) + if ( dnlen > patlen && !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) ) continue; } else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) { if ( dnlen <= patlen ) continue; - if ( e->e_ndn[dnlen - patlen - 1] != ',' ) + if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) ) continue; } - if ( strcmp( a->acl_dn_pat, e->e_ndn + dnlen - patlen ) != 0 ) + if ( strcmp( a->acl_dn_pat.bv_val, e->e_ndn + dnlen - patlen ) != 0 ) continue; } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_get: [%d] matched\n", *count, 0, 0 ); +#else Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] matched\n", *count, 0, 0 ); +#endif } if ( a->acl_filter != NULL ) { @@ -304,24 +490,51 @@ acl_get( } } - Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n", - *count, attr, 0); - +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_get: [%d] check attr %s\n", *count, attr ,0 ); +#else + Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n", + *count, attr, 0); +#endif if ( attr == NULL || a->acl_attrs == NULL || ad_inlist( desc, a->acl_attrs ) ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_get: [%d] acl %s attr: %s\n", *count, e->e_dn, attr ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_get: [%d] acl %s attr: %s\n", *count, e->e_dn, attr ); +#endif return a; } matches[0].rm_so = matches[0].rm_eo = -1; } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, RESULTS, "acl_get: done.\n", 0, 0, 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_get: done.\n", 0, 0, 0 ); +#endif return( NULL ); } +/* + * Record value-dependent access control state + */ +#define ACL_RECORD_VALUE_STATE do { \ + if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \ + state->as_recorded |= ACL_STATE_RECORDED_VD; \ + state->as_vd_acl = a; \ + AC_MEMCPY( state->as_vd_acl_matches, matches, \ + sizeof( state->as_vd_acl_matches )) ; \ + state->as_vd_acl_count = count; \ + state->as_vd_access = b; \ + state->as_vd_access_count = i; \ + } \ + } while( 0 ) /* * acl_mask - modifies mask based upon the given acl and the @@ -335,73 +548,107 @@ acl_get( static slap_control_t acl_mask( AccessControl *a, - slap_access_mask_t *mask, + slap_mask_t *mask, Backend *be, Connection *conn, Operation *op, Entry *e, AttributeDescription *desc, struct berval *val, - regmatch_t *matches -) + regmatch_t *matches, + int count, + AccessControlState *state ) { int i, odnlen, patlen; Access *b; #ifdef LDAP_DEBUG char accessmaskbuf[ACCESSMASK_MAXLEN]; #endif - const char *attr = desc ? desc->ad_cname->bv_val : NULL; + const char *attr; assert( a != NULL ); assert( mask != NULL ); + assert( desc != NULL ); + + attr = desc->ad_cname.bv_val; + + assert( attr != NULL ); +#ifdef NEW_LOGGING + LDAP_LOG( ACL, ENTRY, + "acl_mask: conn %lu access to entry \"%s\", attr \"%s\" requested\n", + conn->c_connid, e->e_dn, attr ); + + LDAP_LOG( ACL, ARGS, + " to %s by \"%s\", (%s) \n", val ? "value" : "all values", + op->o_ndn.bv_val ? op->o_ndn.bv_val : "", + accessmask2str( *mask, accessmaskbuf ) ); +#else Debug( LDAP_DEBUG_ACL, "=> acl_mask: access to entry \"%s\", attr \"%s\" requested\n", e->e_dn, attr, 0 ); Debug( LDAP_DEBUG_ACL, - "=> acl_mask: to value \"%s\" by \"%s\", (%s) \n", - val ? val->bv_val : "*", - op->o_ndn ? op->o_ndn : "", + "=> acl_mask: to %s by \"%s\", (%s) \n", + val ? "value" : "all values", + op->o_ndn.bv_val ? op->o_ndn.bv_val : "", accessmask2str( *mask, accessmaskbuf ) ); +#endif + + if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD ) + && state->as_vd_acl == a ) + { + b = state->as_vd_access; + i = state->as_vd_access_count; - for ( i = 1, b = a->acl_access; b != NULL; b = b->a_next, i++ ) { - slap_access_mask_t oldmask, modmask; + } else { + b = a->acl_access; + i = 1; + } + + for ( ; b != NULL; b = b->a_next, i++ ) { + slap_mask_t oldmask, modmask; ACL_INVALIDATE( modmask ); /* AND clauses */ - if ( b->a_dn_pat != NULL ) { + if ( b->a_dn_pat.bv_len != 0 ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_dn_pat: %s\n", + conn->c_connid, b->a_dn_pat.bv_val ,0 ); +#else Debug( LDAP_DEBUG_ACL, "<= check a_dn_pat: %s\n", - b->a_dn_pat, 0, 0); + b->a_dn_pat.bv_val, 0, 0); +#endif /* * if access applies to the entry itself, and the * user is bound as somebody in the same namespace as * the entry, OR the given dn matches the dn pattern */ - if ( strcmp( b->a_dn_pat, "anonymous" ) == 0 ) { - if (op->o_ndn != NULL && op->o_ndn[0] != '\0' ) { + if ( bvmatch( &b->a_dn_pat, &aci_bv_anonymous ) ) { + if ( op->o_ndn.bv_len != 0 ) { continue; } - } else if ( strcmp( b->a_dn_pat, "users" ) == 0 ) { - if (op->o_ndn == NULL || op->o_ndn[0] == '\0' ) { + } else if ( bvmatch( &b->a_dn_pat, &aci_bv_users ) ) { + if ( op->o_ndn.bv_len == 0 ) { continue; } - } else if ( strcmp( b->a_dn_pat, "self" ) == 0 ) { - if( op->o_ndn == NULL || op->o_ndn[0] == '\0' ) { + } else if ( bvmatch( &b->a_dn_pat, &aci_bv_self ) ) { + if ( op->o_ndn.bv_len == 0 ) { continue; } - if ( e->e_dn == NULL || strcmp( e->e_ndn, op->o_ndn ) != 0 ) { + if ( e->e_dn == NULL || !dn_match( &e->e_nname, &op->o_ndn ) ) { continue; } } else if ( b->a_dn_style == ACL_STYLE_REGEX ) { - if ( strcmp( b->a_dn_pat, "*" ) != 0 ) { - int ret = regex_matches( b->a_dn_pat, - op->o_ndn, e->e_ndn, matches ); + if ( !ber_bvccmp( &b->a_dn_pat, '*' ) ) { + int ret = regex_matches( &b->a_dn_pat, + op->o_ndn.bv_val, e->e_ndn, matches ); if( ret == 0 ) { continue; @@ -409,145 +656,240 @@ acl_mask( } } else { + struct berval pat; + int got_match = 0; + if ( e->e_dn == NULL ) continue; - patlen = strlen( b->a_dn_pat ); - odnlen = strlen( op->o_ndn ); - if ( odnlen < patlen ) - continue; + if ( b->a_dn_expand ) { + struct berval bv; + char buf[ACL_BUF_SIZE]; + + bv.bv_len = sizeof( buf ) - 1; + bv.bv_val = buf; + + string_expand(&bv, &b->a_dn_pat, + e->e_ndn, matches); + if ( dnNormalize2(NULL, &bv, &pat) != LDAP_SUCCESS ) { + /* did not expand to a valid dn */ + continue; + } + } else { + pat = b->a_dn_pat; + } + + patlen = pat.bv_len; + odnlen = op->o_ndn.bv_len; + if ( odnlen < patlen ) { + goto dn_match_cleanup; + + } if ( b->a_dn_style == ACL_STYLE_BASE ) { /* base dn -- entire object DN must match */ - if ( odnlen != patlen ) - continue; + if ( odnlen != patlen ) { + goto dn_match_cleanup; + } } else if ( b->a_dn_style == ACL_STYLE_ONE ) { - char *rdn; int rdnlen = -1; - if ( odnlen <= patlen ) - continue; + if ( odnlen <= patlen ) { + goto dn_match_cleanup; + } - if ( op->o_ndn[odnlen - patlen - 1] != ',' ) - continue; + if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) { + goto dn_match_cleanup; + } - rdn = dn_rdn( NULL, op->o_ndn ); - if ( rdn != NULL ) { - rdnlen = strlen( rdn ); - ch_free( rdn ); + rdnlen = dn_rdnlen( NULL, &op->o_ndn ); + if ( rdnlen != odnlen - patlen - 1 ) { + goto dn_match_cleanup; } - if ( rdnlen != odnlen - patlen - 1 ) - continue; } else if ( b->a_dn_style == ACL_STYLE_SUBTREE ) { - if ( odnlen > patlen && op->o_ndn[odnlen - patlen - 1] != ',' ) - continue; + if ( odnlen > patlen && !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) { + goto dn_match_cleanup; + } } else if ( b->a_dn_style == ACL_STYLE_CHILDREN ) { - if ( odnlen <= patlen ) - continue; - if ( op->o_ndn[odnlen - patlen - 1] != ',' ) - continue; + if ( odnlen <= patlen ) { + goto dn_match_cleanup; + } + + if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) { + goto dn_match_cleanup; + } } - if ( strcmp( b->a_dn_pat, op->o_ndn + odnlen - patlen ) != 0 ) - continue; + got_match = !strcmp( pat.bv_val, op->o_ndn.bv_val + odnlen - patlen ); + +dn_match_cleanup:; + if ( pat.bv_val != b->a_dn_pat.bv_val ) { + free( pat.bv_val ); + } + if ( !got_match ) { + continue; + } } } - if ( b->a_sockurl_pat != NULL ) { + if ( b->a_sockurl_pat.bv_len ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_sockurl_pat: %s\n", + conn->c_connid, b->a_sockurl_pat.bv_val , 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= check a_sockurl_pat: %s\n", - b->a_sockurl_pat, 0, 0 ); + b->a_sockurl_pat.bv_val, 0, 0 ); +#endif - if ( strcmp( b->a_sockurl_pat, "*" ) != 0) { + if ( !ber_bvccmp( &b->a_sockurl_pat, '*' ) ) { if ( b->a_sockurl_style == ACL_STYLE_REGEX) { - if (!regex_matches( b->a_sockurl_pat, conn->c_listener_url, + if (!regex_matches( &b->a_sockurl_pat, conn->c_listener_url.bv_val, e->e_ndn, matches ) ) { continue; } } else { - if ( strcasecmp( b->a_sockurl_pat, conn->c_listener_url ) == 0 ) + if ( ber_bvstrcasecmp( &b->a_sockurl_pat, &conn->c_listener_url ) != 0 ) continue; } } } - if ( b->a_domain_pat != NULL ) { + if ( b->a_domain_pat.bv_len ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_domain_pat: %s\n", + conn->c_connid, b->a_domain_pat.bv_val , 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= check a_domain_pat: %s\n", - b->a_domain_pat, 0, 0 ); - - if ( strcmp( b->a_domain_pat, "*" ) != 0) { + b->a_domain_pat.bv_val, 0, 0 ); +#endif + if ( !ber_bvccmp( &b->a_domain_pat, '*' ) ) { if ( b->a_domain_style == ACL_STYLE_REGEX) { - if (!regex_matches( b->a_domain_pat, conn->c_peer_domain, + if (!regex_matches( &b->a_domain_pat, conn->c_peer_domain.bv_val, e->e_ndn, matches ) ) { continue; } } else { - if ( strcasecmp( b->a_domain_pat, conn->c_peer_domain ) == 0 ) + char buf[ACL_BUF_SIZE]; + + struct berval cmp = conn->c_peer_domain; + struct berval pat = b->a_domain_pat; + + if ( b->a_domain_expand ) { + struct berval bv; + + bv.bv_len = sizeof(buf) - 1; + bv.bv_val = buf; + + string_expand(&bv, &b->a_domain_pat, e->e_ndn, matches); + pat = bv; + } + + if ( b->a_domain_style == ACL_STYLE_SUBTREE ) { + int offset = cmp.bv_len - pat.bv_len; + if ( offset < 0 ) { + continue; + } + + if ( offset == 1 || ( offset > 1 && cmp.bv_val[ offset - 1 ] != '.' ) ) { + continue; + } + + /* trim the domain */ + cmp.bv_val = &cmp.bv_val[ offset ]; + cmp.bv_len -= offset; + } + + if ( ber_bvstrcasecmp( &pat, &cmp ) != 0 ) { continue; + } } } } - if ( b->a_peername_pat != NULL ) { + if ( b->a_peername_pat.bv_len ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_perrname_path: %s\n", + conn->c_connid, b->a_peername_pat.bv_val , 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= check a_peername_path: %s\n", - b->a_peername_pat, 0, 0 ); - - if ( strcmp( b->a_peername_pat, "*" ) != 0) { + b->a_peername_pat.bv_val, 0, 0 ); +#endif + if ( !ber_bvccmp( &b->a_peername_pat, '*' ) ) { if ( b->a_peername_style == ACL_STYLE_REGEX) { - if (!regex_matches( b->a_peername_pat, conn->c_peer_name, + if (!regex_matches( &b->a_peername_pat, conn->c_peer_name.bv_val, e->e_ndn, matches ) ) { continue; } } else { - if ( strcasecmp( b->a_peername_pat, conn->c_peer_name ) == 0 ) + if ( ber_bvstrcasecmp( &b->a_peername_pat, &conn->c_peer_name ) != 0 ) continue; } } } - if ( b->a_sockname_pat != NULL ) { + if ( b->a_sockname_pat.bv_len ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_sockname_path: %s\n", + conn->c_connid, b->a_sockname_pat.bv_val , 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= check a_sockname_path: %s\n", - b->a_sockname_pat, 0, 0 ); - - if ( strcmp( b->a_sockname_pat, "*" ) != 0) { + b->a_sockname_pat.bv_val, 0, 0 ); +#endif + if ( !ber_bvccmp( &b->a_sockname_pat, '*' ) ) { if ( b->a_sockname_style == ACL_STYLE_REGEX) { - if (!regex_matches( b->a_sockname_pat, conn->c_sock_name, + if (!regex_matches( &b->a_sockname_pat, conn->c_sock_name.bv_val, e->e_ndn, matches ) ) { continue; } } else { - if ( strcasecmp( b->a_sockname_pat, conn->c_sock_name ) == 0 ) + if ( ber_bvstrcasecmp( &b->a_sockname_pat, &conn->c_sock_name ) != 0 ) continue; } } } - if ( b->a_dn_at != NULL && op->o_ndn != NULL ) { + if ( b->a_dn_at != NULL ) { Attribute *at; struct berval bv; int rc, match = 0; const char *text; - const char *desc = b->a_dn_at->ad_cname->bv_val; + const char *attr = b->a_dn_at->ad_cname.bv_val; - Debug( LDAP_DEBUG_ACL, "<= check a_dn_at: %s\n", - desc, 0, 0); + assert( attr != NULL ); + + if ( op->o_ndn.bv_len == 0 ) { + continue; + } - bv.bv_val = op->o_ndn; - bv.bv_len = strlen( bv.bv_val ); +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_dn_pat: %s\n", + conn->c_connid, attr , 0 ); +#else + Debug( LDAP_DEBUG_ACL, "<= check a_dn_at: %s\n", + attr, 0, 0); +#endif + bv = op->o_ndn; /* see if asker is listed in dnattr */ for( at = attrs_find( e->e_attrs, b->a_dn_at ); at != NULL; at = attrs_find( at->a_next, b->a_dn_at ) ) { - if( value_find( b->a_dn_at, at->a_vals, &bv ) == 0 ) { + if( value_find_ex( b->a_dn_at, + SLAP_MR_VALUE_NORMALIZED_MATCH, at->a_vals, &bv ) == 0 ) { /* found it */ match = 1; break; @@ -565,9 +907,9 @@ acl_mask( /* target is attribute, check if the attribute value * is the op dn. */ - rc = value_match( &match, b->a_dn_at, - b->a_dn_at->ad_type->sat_equality, - val, &bv, &text ); + rc = value_match( &match, b->a_dn_at, + b->a_dn_at->ad_type->sat_equality, 0, + val, &bv, &text ); /* on match error or no match, fail the ACL clause */ if (rc != LDAP_SUCCESS || match != 0 ) continue; @@ -576,45 +918,134 @@ acl_mask( /* no dnattr match, check if this is a self clause */ if ( ! b->a_dn_self ) continue; + + ACL_RECORD_VALUE_STATE; + /* this is a self clause, check if the target is an * attribute. */ if ( val == NULL ) continue; + /* target is attribute, check if the attribute value * is the op dn. */ - rc = value_match( &match, b->a_dn_at, - b->a_dn_at->ad_type->sat_equality, - val, &bv, &text ); + rc = value_match( &match, b->a_dn_at, + b->a_dn_at->ad_type->sat_equality, 0, + val, &bv, &text ); + /* on match error or no match, fail the ACL clause */ if (rc != LDAP_SUCCESS || match != 0 ) continue; } } - if ( b->a_group_pat != NULL && op->o_ndn != NULL ) { - char buf[1024]; + if ( b->a_group_pat.bv_len ) { + struct berval bv; + struct berval ndn = { 0, NULL }; + int rc; + + if ( op->o_ndn.bv_len == 0 ) { + continue; + } /* b->a_group is an unexpanded entry name, expanded it should be an * entry with objectclass group* and we test to see if odn is one of * the values in the attribute group */ /* see if asker is listed in dnattr */ - if ( b->a_group_style != ACL_STYLE_REGEX ) { - string_expand(buf, sizeof(buf), b->a_group_pat, e->e_ndn, matches); - if ( dn_normalize(buf) == NULL ) { + if ( b->a_group_style == ACL_STYLE_REGEX ) { + char buf[ACL_BUF_SIZE]; + bv.bv_len = sizeof(buf) - 1; + bv.bv_val = buf; + + string_expand( &bv, &b->a_group_pat, e->e_ndn, matches ); + if ( dnNormalize2( NULL, &bv, &ndn ) != LDAP_SUCCESS ) { /* did not expand to a valid dn */ continue; } + + bv = ndn; + } else { - strncpy( buf, b->a_group_pat, sizeof(buf) - 1 ); - buf[sizeof(buf) - 1] = 0; + bv = b->a_group_pat; } - if (backend_group(be, e, buf, op->o_ndn, - b->a_group_oc, b->a_group_at) != 0) - { + rc = backend_group( be, conn, op, e, &bv, &op->o_ndn, + b->a_group_oc, b->a_group_at ); + + if ( ndn.bv_val ) free( ndn.bv_val ); + + if ( rc != 0 ) { + continue; + } + } + + if ( b->a_set_pat.bv_len != 0 ) { + if (aci_match_set( &b->a_set_pat, be, e, conn, op, 0 ) == 0) { + continue; + } + } + + if ( b->a_authz.sai_ssf ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_authz.sai_ssf: ACL %u > OP %u\n", + conn->c_connid, b->a_authz.sai_ssf, op->o_ssf ); +#else + Debug( LDAP_DEBUG_ACL, "<= check a_authz.sai_ssf: ACL %u > OP %u\n", + b->a_authz.sai_ssf, op->o_ssf, 0 ); +#endif + if ( b->a_authz.sai_ssf > op->o_ssf ) { + continue; + } + } + + if ( b->a_authz.sai_transport_ssf ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_authz.sai_transport_ssf: " + "ACL %u > OP %u\n", + conn->c_connid, b->a_authz.sai_transport_ssf, + op->o_transport_ssf ); +#else + Debug( LDAP_DEBUG_ACL, + "<= check a_authz.sai_transport_ssf: ACL %u > OP %u\n", + b->a_authz.sai_transport_ssf, op->o_transport_ssf, 0 ); +#endif + if ( b->a_authz.sai_transport_ssf > op->o_transport_ssf ) { + continue; + } + } + + if ( b->a_authz.sai_tls_ssf ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_authz.sai_tls_ssf: ACL %u > " + "OP %u\n", + conn->c_connid, b->a_authz.sai_tls_ssf, op->o_tls_ssf ); +#else + Debug( LDAP_DEBUG_ACL, + "<= check a_authz.sai_tls_ssf: ACL %u > OP %u\n", + b->a_authz.sai_tls_ssf, op->o_tls_ssf, 0 ); +#endif + if ( b->a_authz.sai_tls_ssf > op->o_tls_ssf ) { + continue; + } + } + + if ( b->a_authz.sai_sasl_ssf ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu check a_authz.sai_sasl_ssf: " + "ACL %u > OP %u\n", + conn->c_connid, b->a_authz.sai_sasl_ssf, op->o_sasl_ssf ); +#else + Debug( LDAP_DEBUG_ACL, + "<= check a_authz.sai_sasl_ssf: ACL %u > OP %u\n", + b->a_authz.sai_sasl_ssf, op->o_sasl_ssf, 0 ); +#endif + if ( b->a_authz.sai_sasl_ssf > op->o_sasl_ssf ) { continue; } } @@ -626,21 +1057,18 @@ acl_mask( /* this case works different from the others above. * since aci's themselves give permissions, we need - * to first check b->a_mask, the ACL's access level. + * to first check b->a_access_mask, the ACL's access level. */ - if( op->o_ndn == NULL || op->o_ndn[0] == '\0' ) { - continue; - } - - if ( e->e_dn == NULL ) { + if ( e->e_nname.bv_len == 0 ) { + /* no ACIs in the root DSE */ continue; } /* first check if the right being requested * is allowed by the ACL clause. */ - if ( ! ACL_GRANT( b->a_mask, *mask ) ) { + if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) { continue; } @@ -650,6 +1078,8 @@ acl_mask( continue; } + ACL_RECORD_VALUE_STATE; + /* start out with nothing granted, nothing denied */ ACL_INIT(tgrant); ACL_INIT(tdeny); @@ -658,9 +1088,9 @@ acl_mask( * rights are determined by OR'ing the individual * rights given by the acis. */ - for ( i = 0; at->a_vals[i] != NULL; i++ ) { + for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) { if (aci_mask( be, conn, op, - e, desc, val, at->a_vals[i], + e, desc, val, &at->a_vals[i], matches, &grant, &deny ) != 0) { tgrant |= grant; @@ -669,7 +1099,7 @@ acl_mask( } /* remove anything that the ACL clause does not allow */ - tgrant &= b->a_mask & ACL_PRIV_MASK; + tgrant &= b->a_access_mask & ACL_PRIV_MASK; tdeny &= ACL_PRIV_MASK; /* see if we have anything to contribute */ @@ -681,7 +1111,7 @@ acl_mask( * by clauses that return grant/deny pairs. Right now, it does either * additive or subtractive rights, but not both at the same time. So, * we need to combine the grant/deny pair into a single rights mask in - * a smart way: if either grant or deny is "empty", then we use the + * a smart way: if either grant or deny is "empty", then we use the * opposite as is, otherwise we remove any denied rights from the grant * rights mask and construct an additive mask. */ @@ -698,10 +1128,16 @@ acl_mask( } else #endif { - modmask = b->a_mask; + modmask = b->a_access_mask; } - +#ifdef NEW_LOGGING + LDAP_LOG( ACL, RESULTS, + "acl_mask: [%d] applying %s (%s)\n", + i, accessmask2str( modmask, accessmaskbuf), + b->a_type == ACL_CONTINUE ? "continue" : b->a_type == ACL_BREAK + ? "break" : "stop" ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_mask: [%d] applying %s (%s)\n", i, accessmask2str( modmask, accessmaskbuf ), @@ -710,7 +1146,7 @@ acl_mask( : b->a_type == ACL_BREAK ? "break" : "stop" ); - +#endif /* save old mask */ oldmask = *mask; @@ -733,9 +1169,15 @@ acl_mask( *mask = modmask; } +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_mask: conn %lu [%d] mask: %s\n", + conn->c_connid, i, accessmask2str( *mask, accessmaskbuf) ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_mask: [%d] mask: %s\n", i, accessmask2str(*mask, accessmaskbuf), 0 ); +#endif if( b->a_type == ACL_CONTINUE ) { continue; @@ -748,9 +1190,18 @@ acl_mask( } } + /* implicit "by * none" clause */ + ACL_INIT(*mask); + +#ifdef NEW_LOGGING + LDAP_LOG( ACL, RESULTS, + "acl_mask: conn %lu no more clauses, returning %d (stop)\n", + conn->c_connid, accessmask2str( *mask, accessmaskbuf) , 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_mask: no more clauses, returning %s (stop)\n", accessmask2str(*mask, accessmaskbuf), 0, 0 ); +#endif return ACL_STOP; } @@ -770,36 +1221,57 @@ acl_check_modlist( Modifications *mlist ) { - int i; + struct berval *bv; + AccessControlState state = ACL_STATE_INIT; assert( be != NULL ); /* short circuit root database access */ - if ( be_isroot( be, op->o_ndn ) ) { + if ( be_isroot( be, &op->o_ndn ) ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_check_modlist: conn %lu access granted to root user\n", + conn->c_connid, 0, 0 ); +#else Debug( LDAP_DEBUG_ACL, "<= acl_access_allowed: granted to database root\n", 0, 0, 0 ); +#endif return 1; } /* use backend default access if no backend acls */ if( be != NULL && be->be_acl == NULL ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_check_modlist: backend default %s access %s to \"%s\"\n", + access2str( ACL_WRITE ), + be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", + op->o_dn.bv_val ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: backend default %s access %s to \"%s\"\n", access2str( ACL_WRITE ), - be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn ); - + be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val ); +#endif return be->be_dfltaccess >= ACL_WRITE; #ifdef notdef /* be is always non-NULL */ /* use global default access if no global acls */ } else if ( be == NULL && global_acl == NULL ) { +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_check_modlist: global default %s access %s to \"%s\"\n", + access2str( ACL_WRITE ), + global_default_access >= ACL_WRITE ? "granted" : "denied", + op->o_dn ); +#else Debug( LDAP_DEBUG_ACL, "=> access_allowed: global default %s access %s to \"%s\"\n", access2str( ACL_WRITE ), global_default_access >= ACL_WRITE ? "granted" : "denied", op->o_dn ); - +#endif return global_default_access >= ACL_WRITE; #endif } @@ -811,21 +1283,41 @@ acl_check_modlist( * by the user */ if ( is_at_no_user_mod( mlist->sml_desc->ad_type ) ) { - Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:" +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "acl_check_modlist: conn %lu no-user-mod %s: modify access granted\n", + conn->c_connid, mlist->sml_desc->ad_cname.bv_val , 0 ); +#else + Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:" " modify access granted\n", - mlist->sml_desc->ad_cname->bv_val, 0, 0 ); + mlist->sml_desc->ad_cname.bv_val, 0, 0 ); +#endif continue; } switch ( mlist->sml_op ) { case LDAP_MOD_REPLACE: - case LDAP_MOD_ADD: - if ( mlist->sml_bvalues == NULL ) { - break; + /* + * We must check both permission to delete the whole + * attribute and permission to add the specific attributes. + * This prevents abuse from selfwriters. + */ + if ( ! access_allowed( be, conn, op, e, + mlist->sml_desc, NULL, ACL_WRITE, &state ) ) + { + return( 0 ); } - for ( i = 0; mlist->sml_bvalues[i] != NULL; i++ ) { + + if ( mlist->sml_bvalues == NULL ) break; + + /* fall thru to check value to add */ + + case LDAP_MOD_ADD: + assert( mlist->sml_bvalues != NULL ); + + for ( bv = mlist->sml_bvalues; bv->bv_val != NULL; bv++ ) { if ( ! access_allowed( be, conn, op, e, - mlist->sml_desc, mlist->sml_bvalues[i], ACL_WRITE ) ) + mlist->sml_desc, bv, ACL_WRITE, &state ) ) { return( 0 ); } @@ -835,56 +1327,32 @@ acl_check_modlist( case LDAP_MOD_DELETE: if ( mlist->sml_bvalues == NULL ) { if ( ! access_allowed( be, conn, op, e, - mlist->sml_desc, NULL, ACL_WRITE ) ) + mlist->sml_desc, NULL, ACL_WRITE, NULL ) ) { return( 0 ); } break; } - for ( i = 0; mlist->sml_bvalues[i] != NULL; i++ ) { + for ( bv = mlist->sml_bvalues; bv->bv_val != NULL; bv++ ) { if ( ! access_allowed( be, conn, op, e, - mlist->sml_desc, mlist->sml_bvalues[i], ACL_WRITE ) ) + mlist->sml_desc, bv, ACL_WRITE, &state ) ) { return( 0 ); } } break; - } - } - - return( 1 ); -} -#ifdef SLAPD_ACI_ENABLED -static char * -aci_bvstrdup( struct berval *bv ) -{ - char *s; + case SLAP_MOD_SOFTADD: + /* allow adding attribute via modrdn thru */ + break; - s = (char *)ch_malloc(bv->bv_len + 1); - if (s != NULL) { - memcpy(s, bv->bv_val, bv->bv_len); - s[bv->bv_len] = 0; + default: + assert( 0 ); + return( 0 ); + } } - return(s); -} - -static int -aci_strbvcmp( - const char *s, - struct berval *bv ) -{ - int res, len; - res = strncasecmp( s, bv->bv_val, bv->bv_len ); - if (res) - return(res); - len = strlen(s); - if (len > (int)bv->bv_len) - return(1); - if (len < (int)bv->bv_len) - return(-1); - return(0); + return( 1 ); } static int @@ -926,6 +1394,103 @@ aci_get_part( return(bv->bv_len); } +BerVarray +aci_set_gather (void *cookie, struct berval *name, struct berval *attr) +{ + AciSetCookie *cp = cookie; + BerVarray bvals = NULL; + struct berval ndn; + + /* this routine needs to return the bervals instead of + * plain strings, since syntax is not known. It should + * also return the syntax or some "comparison cookie". + */ + + if (dnNormalize2(NULL, name, &ndn) == LDAP_SUCCESS) { + const char *text; + AttributeDescription *desc = NULL; + if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) { + backend_attribute(cp->be, NULL, cp->op, + cp->e, &ndn, desc, &bvals); + } + free(ndn.bv_val); + } + return(bvals); +} + +static int +aci_match_set ( + struct berval *subj, + Backend *be, + Entry *e, + Connection *conn, + Operation *op, + int setref +) +{ + struct berval set = { 0, NULL }; + int rc = 0; + AciSetCookie cookie; + + if (setref == 0) { + ber_dupbv( &set, subj ); + } else { + struct berval subjdn, ndn = { 0, NULL }; + struct berval setat; + BerVarray bvals; + const char *text; + AttributeDescription *desc = NULL; + + /* format of string is "entry/setAttrName" */ + if (aci_get_part(subj, 0, '/', &subjdn) < 0) { + return(0); + } + + if ( aci_get_part(subj, 1, '/', &setat) < 0 ) { + setat.bv_val = SLAPD_ACI_SET_ATTR; + setat.bv_len = sizeof(SLAPD_ACI_SET_ATTR)-1; + } + + if ( setat.bv_val != NULL ) { + /* + * NOTE: dnNormalize2 honors the ber_len field + * as the length of the dn to be normalized + */ + if ( dnNormalize2(NULL, &subjdn, &ndn) == LDAP_SUCCESS + && slap_bv2ad(&setat, &desc, &text) == LDAP_SUCCESS ) + { + backend_attribute(be, NULL, op, e, + &ndn, desc, &bvals); + if ( bvals != NULL ) { + if ( bvals[0].bv_val != NULL ) { + int i; + set = bvals[0]; + bvals[0].bv_val = NULL; + for (i=1;bvals[i].bv_val;i++); + bvals[0].bv_val = bvals[i-1].bv_val; + bvals[i-1].bv_val = NULL; + } + ber_bvarray_free(bvals); + } + } + if (ndn.bv_val) + free(ndn.bv_val); + } + } + + if (set.bv_val != NULL) { + cookie.be = be; + cookie.e = e; + cookie.conn = conn; + cookie.op = op; + rc = (slap_set_filter(aci_set_gather, &cookie, &set, + &op->o_ndn, &e->e_nname, NULL) > 0); + ch_free(set.bv_val); + } + return(rc); +} + +#ifdef SLAPD_ACI_ENABLED static int aci_list_map_rights( struct berval *list ) @@ -974,7 +1539,7 @@ aci_list_map_rights( static int aci_list_has_attr( struct berval *list, - const char *attr, + const struct berval *attr, struct berval *val ) { struct berval bv, left, right; @@ -984,13 +1549,13 @@ aci_list_has_attr( if (aci_get_part(&bv, 0, '=', &left) < 0 || aci_get_part(&bv, 1, '=', &right) < 0) { - if (aci_strbvcmp(attr, &bv) == 0) + if (ber_bvstrcasecmp(attr, &bv) == 0) return(1); } else if (val == NULL) { - if (aci_strbvcmp(attr, &left) == 0) + if (ber_bvstrcasecmp(attr, &left) == 0) return(1); } else { - if (aci_strbvcmp(attr, &left) == 0) { + if (ber_bvstrcasecmp(attr, &left) == 0) { /* this is experimental code that implements a * simple (prefix) match of the attribute value. * the ACI draft does not provide for aci's that @@ -1008,7 +1573,7 @@ aci_list_has_attr( if (aci_get_part(&right, 0, '*', &left) < 0 || right.bv_len <= left.bv_len) { - if (aci_strbvcmp(val->bv_val, &right) == 0) + if (ber_bvstrcasecmp(val, &right) == 0) return(1); } else if (val->bv_len >= left.bv_len) { if (strncasecmp( val->bv_val, left.bv_val, left.bv_len ) == 0) @@ -1023,7 +1588,7 @@ aci_list_has_attr( static slap_access_t aci_list_get_attr_rights( struct berval *list, - const char *attr, + const struct berval *attr, struct berval *val ) { struct berval bv; @@ -1045,7 +1610,7 @@ aci_list_get_attr_rights( static int aci_list_get_rights( struct berval *list, - const char *attr, + const struct berval *attr, struct berval *val, slap_access_t *grant, slap_access_t *deny ) @@ -1054,8 +1619,9 @@ aci_list_get_rights( slap_access_t *mask; int i, found; - if (attr == NULL || *attr == 0 || strcasecmp(attr, "entry") == 0) { - attr = "[entry]"; + if (attr == NULL || attr->bv_len == 0 + || ber_bvstrcasecmp( attr, &aci_bv_entry ) == 0) { + attr = &aci_bv_br_entry; } found = 0; @@ -1065,9 +1631,9 @@ aci_list_get_rights( for (i = 0; aci_get_part(list, i, '$', &perm) >= 0; i++) { if (aci_get_part(&perm, 0, ';', &actn) < 0) continue; - if (aci_strbvcmp( "grant", &actn ) == 0) { + if (ber_bvstrcasecmp( &aci_bv_grant, &actn ) == 0) { mask = grant; - } else if (aci_strbvcmp( "deny", &actn ) == 0) { + } else if (ber_bvstrcasecmp( &aci_bv_deny, &actn ) == 0) { mask = deny; } else { continue; @@ -1075,7 +1641,7 @@ aci_list_get_rights( found = 1; *mask |= aci_list_get_attr_rights(&perm, attr, val); - *mask |= aci_list_get_attr_rights(&perm, "[all]", NULL); + *mask |= aci_list_get_attr_rights(&perm, &aci_bv_br_all, NULL); } return(found); } @@ -1083,68 +1649,59 @@ aci_list_get_rights( static int aci_group_member ( struct berval *subj, - const char *defgrpoc, - const char *defgrpat, + struct berval *defgrpoc, + struct berval *defgrpat, Backend *be, Entry *e, + Connection *conn, Operation *op, regmatch_t *matches ) { - struct berval bv; - char *subjdn, *grpdn = NULL; - char *grpoc; - char *grpat; + struct berval subjdn; + struct berval grpoc; + struct berval grpat; ObjectClass *grp_oc = NULL; AttributeDescription *grp_ad = NULL; - char *text; + const char *text; int rc; /* format of string is "group/objectClassValue/groupAttrName" */ - if (aci_get_part(subj, 0, '/', &bv) < 0) { + if (aci_get_part(subj, 0, '/', &subjdn) < 0) { return(0); } - subjdn = aci_bvstrdup(&bv); - if (subjdn == NULL) { - return(0); + if (aci_get_part(subj, 1, '/', &grpoc) < 0) { + grpoc = *defgrpoc; } - if (aci_get_part(subj, 1, '/', &bv) < 0) { - grpoc = ch_strdup( defgrpoc ); - } else { - grpoc = aci_bvstrdup(&bv); - } - - if (aci_get_part(subj, 2, '/', &bv) < 0) { - grpat = ch_strdup( defgrpat ); - } else { - grpat = aci_bvstrdup(&bv); + if (aci_get_part(subj, 2, '/', &grpat) < 0) { + grpat = *defgrpat; } - rc = slap_str2ad( grpat, &grp_ad, &text ); + rc = slap_bv2ad( &grpat, &grp_ad, &text ); if( rc != LDAP_SUCCESS ) { rc = 0; goto done; } rc = 0; - grp_oc = oc_find( grpoc ); - grpdn = (char *)ch_malloc(1024); - - if (grp_oc != NULL && grp_ad != NULL && grpdn != NULL) { - string_expand(grpdn, 1024, subjdn, e->e_ndn, matches); - if ( dn_normalize(grpdn) != NULL ) { - rc = (backend_group(be, e, grpdn, op->o_ndn, grp_oc, grp_ad) == 0); + grp_oc = oc_bvfind( &grpoc ); + + if (grp_oc != NULL && grp_ad != NULL ) { + char buf[ACL_BUF_SIZE]; + struct berval bv, ndn; + bv.bv_len = sizeof( buf ) - 1; + bv.bv_val = (char *)&buf; + string_expand(&bv, &subjdn, e->e_ndn, matches); + if ( dnNormalize2(NULL, &bv, &ndn) == LDAP_SUCCESS ) { + rc = (backend_group(be, conn, op, e, &ndn, &op->o_ndn, + grp_oc, grp_ad) == 0); + free( ndn.bv_val ); } } done: - if( grp_ad != NULL ) ad_free( grp_ad, 1 ); - ch_free(grpdn); - ch_free(grpat); - ch_free(grpoc); - ch_free(subjdn); return(rc); } @@ -1163,15 +1720,18 @@ aci_mask( ) { struct berval bv, perms, sdn; - char *subjdn; int rc; - char *attr = desc->ad_cname->bv_val; + + + assert( desc->ad_cname.bv_val != NULL ); /* parse an aci of the form: oid#scope#action;rights;attr;rights;attr$action;rights;attr;rights;attr#dnType#subjectDN See draft-ietf-ldapext-aci-model-04.txt section 9.1 for a full description of the format for this attribute. + Differences: "this" in the draft is "self" here, and + "self" and "public" is in the position of dnType. For now, this routine only supports scope=entry. */ @@ -1186,7 +1746,7 @@ aci_mask( /* check that the scope is "entry" */ if (aci_get_part(aci, 1, '#', &bv) < 0 - || aci_strbvcmp( "entry", &bv ) != 0) + || ber_bvstrcasecmp( &aci_bv_entry, &bv ) != 0) { return(0); } @@ -1196,7 +1756,7 @@ aci_mask( return(0); /* check if any permissions allow desired access */ - if (aci_list_get_rights(&perms, attr, val, grant, deny) == 0) + if (aci_list_get_rights(&perms, &desc->ad_cname, val, grant, deny) == 0) return(0); /* see if we have a DN match */ @@ -1206,30 +1766,29 @@ aci_mask( if (aci_get_part(aci, 4, '#', &sdn) < 0) return(0); - if (aci_strbvcmp( "access-id", &bv ) == 0) { - subjdn = aci_bvstrdup(&sdn); - if (subjdn == NULL) - return(0); - rc = 1; - if ( dn_normalize(subjdn) != NULL ) - if (strcasecmp(op->o_ndn, subjdn) != 0) - rc = 0; - ch_free(subjdn); - return(rc); - } + if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) { + struct berval ndn; + rc = 0; + if ( dnNormalize2(NULL, &sdn, &ndn) == LDAP_SUCCESS ) { + if (dn_match( &op->o_ndn, &ndn)) + rc = 1; + free(ndn.bv_val); + } + return (rc); - if (aci_strbvcmp( "self", &bv ) == 0) { - if (strcasecmp(op->o_ndn, e->e_ndn) == 0) + } else if (ber_bvstrcasecmp( &aci_bv_public, &bv ) == 0) { + return(1); + + } else if (ber_bvstrcasecmp( &aci_bv_self, &bv ) == 0) { + if (dn_match(&op->o_ndn, &e->e_nname)) return(1); - } else if (aci_strbvcmp( "dnattr", &bv ) == 0) { - char *dnattr = aci_bvstrdup(&sdn); + } else if (ber_bvstrcasecmp( &aci_bv_dnattr, &bv ) == 0) { Attribute *at; AttributeDescription *ad = NULL; const char *text; - rc = slap_str2ad( dnattr, &ad, &text ); - ch_free( dnattr ); + rc = slap_bv2ad( &sdn, &ad, &text ); if( rc != LDAP_SUCCESS ) { return 0; @@ -1237,29 +1796,35 @@ aci_mask( rc = 0; - bv.bv_val = op->o_ndn; - bv.bv_len = strlen( bv.bv_val ); + bv = op->o_ndn; for(at = attrs_find( e->e_attrs, ad ); at != NULL; at = attrs_find( at->a_next, ad ) ) { - if (value_find( ad, at->a_vals, &bv) == 0 ) { + if (value_find_ex( ad, SLAP_MR_VALUE_NORMALIZED_MATCH, at->a_vals, &bv) == 0 ) { rc = 1; break; } } - ad_free( ad, 1 ); return rc; - } else if (aci_strbvcmp( "group", &bv ) == 0) { - if (aci_group_member(&sdn, SLAPD_GROUP_CLASS, SLAPD_GROUP_ATTR, be, e, op, matches)) + } else if (ber_bvstrcasecmp( &aci_bv_group, &bv ) == 0) { + if (aci_group_member(&sdn, &aci_bv_group_class, &aci_bv_group_attr, be, e, conn, op, matches)) return(1); - } else if (aci_strbvcmp( "role", &bv ) == 0) { - if (aci_group_member(&sdn, SLAPD_ROLE_CLASS, SLAPD_ROLE_ATTR, be, e, op, matches)) + } else if (ber_bvstrcasecmp( &aci_bv_role, &bv ) == 0) { + if (aci_group_member(&sdn, &aci_bv_role_class, &aci_bv_role_attr, be, e, conn, op, matches)) + return(1); + + } else if (ber_bvstrcasecmp( &aci_bv_set, &bv ) == 0) { + if (aci_match_set(&sdn, be, e, conn, op, 0)) + return(1); + + } else if (ber_bvstrcasecmp( &aci_bv_set_ref, &bv ) == 0) { + if (aci_match_set(&sdn, be, e, conn, op, 1)) return(1); } @@ -1271,44 +1836,67 @@ aci_mask( static void string_expand( - char *newbuf, - int bufsiz, - char *pat, + struct berval *bv, + struct berval *pat, char *match, regmatch_t *matches) { - int size; + ber_len_t size; char *sp; char *dp; - int flag; + int flag; size = 0; - newbuf[0] = '\0'; - bufsiz--; /* leave space for lone $ */ + bv->bv_val[0] = '\0'; + bv->bv_len--; /* leave space for lone $ */ flag = 0; - for ( dp = newbuf, sp = pat; size < bufsiz && *sp ; sp++) { + for ( dp = bv->bv_val, sp = pat->bv_val; size < bv->bv_len && + sp < pat->bv_val + pat->bv_len ; sp++ ) + { /* did we previously see a $ */ - if (flag) { - if (*sp == '$') { + if ( flag ) { + if ( flag == 1 && *sp == '$' ) { *dp++ = '$'; size++; - } else if (*sp >= '0' && *sp <= '9' ) { - int n; - int i; - int l; + flag = 0; + + } else if ( flag == 1 && *sp == '{' /*'}'*/) { + flag = 2; + + } else if ( *sp >= '0' && *sp <= '9' ) { + int n; + int i; + int l; n = *sp - '0'; + + if ( flag == 2 ) { + for ( sp++; *sp != '\0' && *sp != /*'{'*/ '}'; sp++ ) { + if ( *sp >= '0' && *sp <= '9' ) { + n = 10*n + ( *sp - '0' ); + } + } + + if ( *sp != /*'{'*/ '}' ) { + /* error */ + } + } + + if ( n >= MAXREMATCHES ) { + + } + *dp = '\0'; i = matches[n].rm_so; l = matches[n].rm_eo; - for ( ; size < 512 && i < l; size++, i++ ) { + for ( ; size < bv->bv_len && i < l; size++, i++ ) { *dp++ = match[i]; - size++; } *dp = '\0'; + + flag = 0; } - flag = 0; } else { if (*sp == '$') { flag = 1; @@ -1319,51 +1907,74 @@ string_expand( } } - if (flag) { + if ( flag ) { /* must have ended with a single $ */ *dp++ = '$'; size++; } *dp = '\0'; - - Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern: %s\n", pat, 0, 0 ); - Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", newbuf, 0, 0 ); + bv->bv_len = size; + +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL1, + "string_expand: pattern = %.*s\n", (int)pat->bv_len, pat->bv_val, 0 ); + LDAP_LOG( ACL, DETAIL1, "string_expand: expanded = %s\n", bv->bv_val, 0, 0 ); +#else + Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern: %.*s\n", (int)pat->bv_len, pat->bv_val, 0 ); + Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", bv->bv_val, 0, 0 ); +#endif } static int regex_matches( - char *pat, /* pattern to expand and match against */ + struct berval *pat, /* pattern to expand and match against */ char *str, /* string to match against pattern */ char *buf, /* buffer with $N expansion variables */ regmatch_t *matches /* offsets in buffer for $N expansion variables */ ) { regex_t re; - char newbuf[512]; + char newbuf[ACL_BUF_SIZE]; + struct berval bv; int rc; + bv.bv_len = sizeof(newbuf) - 1; + bv.bv_val = newbuf; + if(str == NULL) str = ""; - string_expand(newbuf, sizeof(newbuf), pat, buf, matches); + string_expand(&bv, pat, buf, matches); if (( rc = regcomp(&re, newbuf, REG_EXTENDED|REG_ICASE))) { - char error[512]; + char error[ACL_BUF_SIZE]; regerror(rc, &re, error, sizeof(error)); +#ifdef NEW_LOGGING + LDAP_LOG( ACL, ERR, + "regex_matches: compile( \"%s\", \"%s\") failed %s\n", + pat->bv_val, str, error ); +#else Debug( LDAP_DEBUG_TRACE, "compile( \"%s\", \"%s\") failed %s\n", - pat, str, error ); + pat->bv_val, str, error ); +#endif return( 0 ); } rc = regexec(&re, str, 0, NULL, 0); regfree( &re ); +#ifdef NEW_LOGGING + LDAP_LOG( ACL, DETAIL2, "regex_matches: string: %s\n", str, 0, 0 ); + LDAP_LOG( ACL, DETAIL2, "regex_matches: rc: %d %s\n", + rc, rc ? "matches" : "no matches", 0 ); +#else Debug( LDAP_DEBUG_TRACE, - "=> regex_matches: string: %s\n", str, 0, 0 ); + "=> regex_matches: string: %s\n", str, 0, 0 ); Debug( LDAP_DEBUG_TRACE, "=> regex_matches: rc: %d %s\n", rc, !rc ? "matches" : "no matches", 0 ); +#endif return( !rc ); }