diff options
Diffstat (limited to 'source3/lib')
-rw-r--r-- | source3/lib/ldb_compat.c | 639 | ||||
-rw-r--r-- | source3/lib/ldb_compat.h | 87 |
2 files changed, 0 insertions, 726 deletions
diff --git a/source3/lib/ldb_compat.c b/source3/lib/ldb_compat.c deleted file mode 100644 index 36a29e6833..0000000000 --- a/source3/lib/ldb_compat.c +++ /dev/null @@ -1,639 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" -#include "lib/ldb_compat.h" - -static struct ldb_parse_tree *ldb_parse_filter(void *mem_ctx, const char **s); - -static int ldb_parse_hex2char(const char *x) -{ - if (isxdigit(x[0]) && isxdigit(x[1])) { - const char h1 = x[0], h2 = x[1]; - int c = 0; - - if (h1 >= 'a') c = h1 - (int)'a' + 10; - else if (h1 >= 'A') c = h1 - (int)'A' + 10; - else if (h1 >= '0') c = h1 - (int)'0'; - c = c << 4; - if (h2 >= 'a') c += h2 - (int)'a' + 10; - else if (h2 >= 'A') c += h2 - (int)'A' + 10; - else if (h2 >= '0') c += h2 - (int)'0'; - - return c; - } - - return -1; -} - - - -/* - decode a RFC2254 binary string representation of a buffer. - Used in LDAP filters. -*/ -static struct ldb_val ldb_binary_decode(void *mem_ctx, const char *str) -{ - size_t i, j; - struct ldb_val ret; - size_t slen = str?strlen(str):0; - - ret.data = (uint8_t *)talloc_size(mem_ctx, slen+1); - ret.length = 0; - if (ret.data == NULL) return ret; - - for (i=j=0;i<slen;i++) { - if (str[i] == '\\') { - int c; - - c = ldb_parse_hex2char(&str[i+1]); - if (c == -1) { - talloc_free(ret.data); - memset(&ret, 0, sizeof(ret)); - return ret; - } - ((uint8_t *)ret.data)[j++] = c; - i += 2; - } else { - ((uint8_t *)ret.data)[j++] = str[i]; - } - } - ret.length = j; - ((uint8_t *)ret.data)[j] = 0; - - return ret; -} - - - - -/* - encode a blob as a RFC2254 binary string, escaping any - non-printable or '\' characters -*/ -char *ldb_binary_encode(void *mem_ctx, struct ldb_val val) -{ - size_t i; - char *ret; - size_t len = val.length; - unsigned char *buf = val.data; - - for (i=0;i<val.length;i++) { - if (!isprint(buf[i]) || strchr(" *()\\&|!\"", buf[i])) { - len += 2; - } - } - ret = talloc_array(mem_ctx, char, len+1); - if (ret == NULL) return NULL; - - len = 0; - for (i=0;i<val.length;i++) { - if (!isprint(buf[i]) || strchr(" *()\\&|!\"", buf[i])) { - snprintf(ret+len, 4, "\\%02X", buf[i]); - len += 3; - } else { - ret[len++] = buf[i]; - } - } - - ret[len] = 0; - - return ret; -} - - - -static enum ldb_parse_op ldb_parse_filtertype(void *mem_ctx, char **type, char **value, const char **s) -{ - enum ldb_parse_op filter = 0; - char *name, *val, *k; - const char *p = *s; - const char *t, *t1; - - /* retrieve attributetype name */ - t = p; - - if (*p == '@') { /* for internal attributes the first char can be @ */ - p++; - } - - while ((isascii(*p) && isalnum((unsigned char)*p)) || (*p == '-') || (*p == '.')) { - /* attribute names can only be alphanums */ - p++; - } - - if (*p == ':') { /* but extended searches have : and . chars too */ - p = strstr(p, ":="); - if (p == NULL) { /* malformed attribute name */ - return 0; - } - } - - t1 = p; - - while (isspace((unsigned char)*p)) p++; - - if (!strchr("=<>~:", *p)) { - return 0; - } - - /* save name */ - name = (char *)talloc_memdup(mem_ctx, t, t1 - t + 1); - if (name == NULL) return 0; - name[t1 - t] = '\0'; - - /* retrieve filtertype */ - - if (*p == '=') { - filter = LDB_OP_EQUALITY; - } else if (*(p + 1) == '=') { - switch (*p) { - case '<': - filter = LDB_OP_LESS; - p++; - break; - case '>': - filter = LDB_OP_GREATER; - p++; - break; - case '~': - filter = LDB_OP_APPROX; - p++; - break; - case ':': - filter = LDB_OP_EXTENDED; - p++; - break; - } - } - if (!filter) { - talloc_free(name); - return filter; - } - p++; - - while (isspace((unsigned char)*p)) p++; - - /* retrieve value */ - t = p; - - while (*p && ((*p != ')') || ((*p == ')') && (*(p - 1) == '\\')))) p++; - - val = (char *)talloc_memdup(mem_ctx, t, p - t + 1); - if (val == NULL) { - talloc_free(name); - return 0; - } - val[p - t] = '\0'; - - k = &(val[p - t]); - - /* remove trailing spaces from value */ - while ((k > val) && (isspace((unsigned char)*(k - 1)))) k--; - *k = '\0'; - - *type = name; - *value = val; - *s = p; - return filter; -} - -/* find the first matching wildcard */ -static char *ldb_parse_find_wildcard(char *value) -{ - while (*value) { - value = strpbrk(value, "\\*"); - if (value == NULL) return NULL; - - if (value[0] == '\\') { - if (value[1] == '\0') return NULL; - value += 2; - continue; - } - - if (value[0] == '*') return value; - } - - return NULL; -} - -/* return a NULL terminated list of binary strings representing the value - chunks separated by wildcards that makes the value portion of the filter -*/ -static struct ldb_val **ldb_wildcard_decode(void *mem_ctx, const char *string) -{ - struct ldb_val **ret = NULL; - unsigned int val = 0; - char *wc, *str; - - wc = talloc_strdup(mem_ctx, string); - if (wc == NULL) return NULL; - - while (wc && *wc) { - str = wc; - wc = ldb_parse_find_wildcard(str); - if (wc && *wc) { - if (wc == str) { - wc++; - continue; - } - *wc = 0; - wc++; - } - - ret = talloc_realloc(mem_ctx, ret, struct ldb_val *, val + 2); - if (ret == NULL) return NULL; - - ret[val] = talloc(mem_ctx, struct ldb_val); - if (ret[val] == NULL) return NULL; - - *(ret[val]) = ldb_binary_decode(mem_ctx, str); - if ((ret[val])->data == NULL) return NULL; - - val++; - } - - if (ret != NULL) { - ret[val] = NULL; - } - - return ret; -} - -/* - parse an extended match - - possible forms: - (attr:oid:=value) - (attr:dn:oid:=value) - (attr:dn:=value) - (:dn:oid:=value) - - the ':dn' part sets the dnAttributes boolean if present - the oid sets the rule_id string - -*/ -static struct ldb_parse_tree *ldb_parse_extended(struct ldb_parse_tree *ret, - char *attr, char *value) -{ - char *p1, *p2; - - ret->operation = LDB_OP_EXTENDED; - ret->u.extended.value = ldb_binary_decode(ret, value); - if (ret->u.extended.value.data == NULL) goto failed; - - p1 = strchr(attr, ':'); - if (p1 == NULL) goto failed; - p2 = strchr(p1+1, ':'); - - *p1 = 0; - if (p2) *p2 = 0; - - ret->u.extended.attr = attr; - if (strcmp(p1+1, "dn") == 0) { - ret->u.extended.dnAttributes = 1; - if (p2) { - ret->u.extended.rule_id = talloc_strdup(ret, p2+1); - if (ret->u.extended.rule_id == NULL) goto failed; - } else { - ret->u.extended.rule_id = NULL; - } - } else { - ret->u.extended.dnAttributes = 0; - ret->u.extended.rule_id = talloc_strdup(ret, p1+1); - if (ret->u.extended.rule_id == NULL) goto failed; - } - - return ret; - -failed: - talloc_free(ret); - return NULL; -} - - -/* - <simple> ::= <attributetype> <filtertype> <attributevalue> -*/ -static struct ldb_parse_tree *ldb_parse_simple(void *mem_ctx, const char **s) -{ - char *attr, *value; - struct ldb_parse_tree *ret; - enum ldb_parse_op filtertype; - - ret = talloc(mem_ctx, struct ldb_parse_tree); - if (!ret) { - errno = ENOMEM; - return NULL; - } - - filtertype = ldb_parse_filtertype(ret, &attr, &value, s); - if (!filtertype) { - talloc_free(ret); - return NULL; - } - - switch (filtertype) { - - case LDB_OP_PRESENT: - ret->operation = LDB_OP_PRESENT; - ret->u.present.attr = attr; - break; - - case LDB_OP_EQUALITY: - - if (strcmp(value, "*") == 0) { - ret->operation = LDB_OP_PRESENT; - ret->u.present.attr = attr; - break; - } - - if (ldb_parse_find_wildcard(value) != NULL) { - ret->operation = LDB_OP_SUBSTRING; - ret->u.substring.attr = attr; - ret->u.substring.start_with_wildcard = 0; - ret->u.substring.end_with_wildcard = 0; - ret->u.substring.chunks = ldb_wildcard_decode(ret, value); - if (ret->u.substring.chunks == NULL){ - talloc_free(ret); - return NULL; - } - if (value[0] == '*') - ret->u.substring.start_with_wildcard = 1; - if (value[strlen(value) - 1] == '*') - ret->u.substring.end_with_wildcard = 1; - talloc_free(value); - - break; - } - - ret->operation = LDB_OP_EQUALITY; - ret->u.equality.attr = attr; - ret->u.equality.value = ldb_binary_decode(ret, value); - if (ret->u.equality.value.data == NULL) { - talloc_free(ret); - return NULL; - } - talloc_free(value); - break; - - case LDB_OP_GREATER: - ret->operation = LDB_OP_GREATER; - ret->u.comparison.attr = attr; - ret->u.comparison.value = ldb_binary_decode(ret, value); - if (ret->u.comparison.value.data == NULL) { - talloc_free(ret); - return NULL; - } - talloc_free(value); - break; - - case LDB_OP_LESS: - ret->operation = LDB_OP_LESS; - ret->u.comparison.attr = attr; - ret->u.comparison.value = ldb_binary_decode(ret, value); - if (ret->u.comparison.value.data == NULL) { - talloc_free(ret); - return NULL; - } - talloc_free(value); - break; - - case LDB_OP_APPROX: - ret->operation = LDB_OP_APPROX; - ret->u.comparison.attr = attr; - ret->u.comparison.value = ldb_binary_decode(ret, value); - if (ret->u.comparison.value.data == NULL) { - talloc_free(ret); - return NULL; - } - talloc_free(value); - break; - - case LDB_OP_EXTENDED: - - ret = ldb_parse_extended(ret, attr, value); - break; - - default: - talloc_free(ret); - return NULL; - } - - return ret; -} - -/* - parse a filterlist - <and> ::= '&' <filterlist> - <or> ::= '|' <filterlist> - <filterlist> ::= <filter> | <filter> <filterlist> -*/ -static struct ldb_parse_tree *ldb_parse_filterlist(void *mem_ctx, const char **s) -{ - struct ldb_parse_tree *ret, *next; - enum ldb_parse_op op; - const char *p = *s; - - switch (*p) { - case '&': - op = LDB_OP_AND; - break; - case '|': - op = LDB_OP_OR; - break; - default: - return NULL; - } - p++; - - while (isspace((unsigned char)*p)) p++; - - ret = talloc(mem_ctx, struct ldb_parse_tree); - if (!ret) { - errno = ENOMEM; - return NULL; - } - - ret->operation = op; - ret->u.list.num_elements = 1; - ret->u.list.elements = talloc(ret, struct ldb_parse_tree *); - if (!ret->u.list.elements) { - errno = ENOMEM; - talloc_free(ret); - return NULL; - } - - ret->u.list.elements[0] = ldb_parse_filter(ret->u.list.elements, &p); - if (!ret->u.list.elements[0]) { - talloc_free(ret); - return NULL; - } - - while (isspace((unsigned char)*p)) p++; - - while (*p && (next = ldb_parse_filter(ret->u.list.elements, &p))) { - struct ldb_parse_tree **e; - e = talloc_realloc(ret, ret->u.list.elements, - struct ldb_parse_tree *, - ret->u.list.num_elements + 1); - if (!e) { - errno = ENOMEM; - talloc_free(ret); - return NULL; - } - ret->u.list.elements = e; - ret->u.list.elements[ret->u.list.num_elements] = next; - ret->u.list.num_elements++; - while (isspace((unsigned char)*p)) p++; - } - - *s = p; - - return ret; -} - -/* - <not> ::= '!' <filter> -*/ -static struct ldb_parse_tree *ldb_parse_not(void *mem_ctx, const char **s) -{ - struct ldb_parse_tree *ret; - const char *p = *s; - - if (*p != '!') { - return NULL; - } - p++; - - ret = talloc(mem_ctx, struct ldb_parse_tree); - if (!ret) { - errno = ENOMEM; - return NULL; - } - - ret->operation = LDB_OP_NOT; - ret->u.isnot.child = ldb_parse_filter(ret, &p); - if (!ret->u.isnot.child) { - talloc_free(ret); - return NULL; - } - - *s = p; - - return ret; -} - - - -/* - parse a filtercomp - <filtercomp> ::= <and> | <or> | <not> | <simple> -*/ -static struct ldb_parse_tree *ldb_parse_filtercomp(void *mem_ctx, const char **s) -{ - struct ldb_parse_tree *ret; - const char *p = *s; - - while (isspace((unsigned char)*p)) p++; - - switch (*p) { - case '&': - ret = ldb_parse_filterlist(mem_ctx, &p); - break; - - case '|': - ret = ldb_parse_filterlist(mem_ctx, &p); - break; - - case '!': - ret = ldb_parse_not(mem_ctx, &p); - break; - - case '(': - case ')': - return NULL; - - default: - ret = ldb_parse_simple(mem_ctx, &p); - - } - - *s = p; - return ret; -} - - - -/* - <filter> ::= '(' <filtercomp> ')' -*/ -static struct ldb_parse_tree *ldb_parse_filter(void *mem_ctx, const char **s) -{ - struct ldb_parse_tree *ret; - const char *p = *s; - - if (*p != '(') { - return NULL; - } - p++; - - ret = ldb_parse_filtercomp(mem_ctx, &p); - - if (*p != ')') { - return NULL; - } - p++; - - while (isspace((unsigned char)*p)) { - p++; - } - - *s = p; - - return ret; -} - - - -/* - main parser entry point. Takes a search string and returns a parse tree - - expression ::= <simple> | <filter> -*/ -struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s) -{ - if (s == NULL || *s == 0) { - s = "(|(objectClass=*)(distinguishedName=*))"; - } - - while (isspace((unsigned char)*s)) s++; - - if (*s == '(') { - return ldb_parse_filter(mem_ctx, &s); - } - - return ldb_parse_simple(mem_ctx, &s); -} - - diff --git a/source3/lib/ldb_compat.h b/source3/lib/ldb_compat.h deleted file mode 100644 index f05104a5c6..0000000000 --- a/source3/lib/ldb_compat.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - ldb database library - - Copyright (C) Andrew Tridgell 2004 - - ** NOTE! The following LGPL license applies to the ldb - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 3 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, see <http://www.gnu.org/licenses/>. -*/ - -#ifndef __LDB_COMPAT_H__ -#define __LDB_COMPAT_H__ - -char *ldb_binary_encode(void *mem_ctx, struct ldb_val val); -struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s); - -/* - structures for ldb_parse_tree handling code -*/ -enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3, - LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5, - LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8, - LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 }; - -struct ldb_parse_tree { - enum ldb_parse_op operation; - union { - struct { - struct ldb_parse_tree *child; - } isnot; - struct { - const char *attr; - struct ldb_val value; - } equality; - struct { - const char *attr; - int start_with_wildcard; - int end_with_wildcard; - struct ldb_val **chunks; - } substring; - struct { - const char *attr; - } present; - struct { - const char *attr; - struct ldb_val value; - } comparison; - struct { - const char *attr; - int dnAttributes; - char *rule_id; - struct ldb_val value; - } extended; - struct { - unsigned int num_elements; - struct ldb_parse_tree **elements; - } list; - } u; -}; - -struct ldb_message_element { - unsigned int flags; - const char *name; - unsigned int num_values; - struct ldb_val *values; -}; - -struct ldb_control { - const char *oid; - int critical; - void *data; -}; - -#endif |