2 * value.c Functions to handle value_data_t
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 * Copyright 2014 The FreeRADIUS server project
25 #include <freeradius-devel/libradius.h>
28 /** Compare two values
30 * @param[in] a_type of data to compare.
31 * @param[in] a_len of data to compare.
32 * @param[in] a Value to compare.
33 * @param[in] b_type of data to compare.
34 * @param[in] b_len of data to compare.
35 * @param[in] b Value to compare.
36 * @return -1 if a is less than b, 0 if both are equal, 1 if a is more than b, < -1 on error.
38 int value_data_cmp(PW_TYPE a_type, value_data_t const *a, size_t a_len,
39 PW_TYPE b_type, value_data_t const *b, size_t b_len)
43 if (a_type != b_type) {
44 fr_strerror_printf("Can't compare values of different types");
49 * After doing the previous check for special comparisons,
50 * do the per-type comparison here.
55 case PW_TYPE_STRING: /* We use memcmp to be \0 safe */
66 compare = memcmp(a->octets, b->octets, length);
67 if (compare != 0) break;
71 * Contents are the same. The return code
72 * is therefore the difference in lengths.
74 * i.e. "0x00" is smaller than "0x0000"
76 compare = a_len - b_len;
81 * Short-hand for simplicity.
83 #define CHECK(_type) if (a->_type < b->_type) { compare = -1; \
84 } else if (a->_type > b->_type) { compare = +1; }
86 case PW_TYPE_BOOLEAN: /* this isn't a RADIUS type, and shouldn't really ever be used */
100 case PW_TYPE_INTEGER:
108 case PW_TYPE_INTEGER64:
112 case PW_TYPE_ETHERNET:
113 compare = memcmp(a->ether, b->ether, sizeof(a->ether));
116 case PW_TYPE_IPV4_ADDR: {
117 uint32_t a_int, b_int;
119 a_int = ntohl(a->ipaddr.s_addr);
120 b_int = ntohl(b->ipaddr.s_addr);
123 } else if (a_int > b_int) {
129 case PW_TYPE_IPV6_ADDR:
130 compare = memcmp(&a->ipv6addr, &b->ipv6addr, sizeof(a->ipv6addr));
133 case PW_TYPE_IPV6_PREFIX:
134 compare = memcmp(a->ipv6prefix, b->ipv6prefix, sizeof(a->ipv6prefix));
137 case PW_TYPE_IPV4_PREFIX:
138 compare = memcmp(a->ipv4prefix, b->ipv4prefix, sizeof(a->ipv4prefix));
142 compare = memcmp(a->ifid, b->ifid, sizeof(a->ifid));
146 * Na of the types below should be in the REQUEST
148 case PW_TYPE_INVALID: /* We should never see these */
149 case PW_TYPE_COMBO_IP_ADDR: /* This should have been converted into IPADDR/IPV6ADDR */
150 case PW_TYPE_COMBO_IP_PREFIX: /* This should have been converted into IPADDR/IPV6ADDR */
152 case PW_TYPE_EXTENDED:
153 case PW_TYPE_LONG_EXTENDED:
156 case PW_TYPE_TIMEVAL:
158 fr_assert(0); /* unknown type */
162 * Do NOT add a default here, as new types are added
163 * static analysis will warn us they're not handled
169 } else if (compare < 0) {
176 * We leverage the fact that IPv4 and IPv6 prefixes both
177 * have the same format:
179 * reserved, prefix-len, data...
181 static int value_data_cidr_cmp_op(FR_TOKEN op, int bytes,
182 uint8_t a_net, uint8_t const *a,
183 uint8_t b_net, uint8_t const *b)
189 * Handle the case of netmasks being identical.
191 if (a_net == b_net) {
194 compare = memcmp(a, b, bytes);
197 * If they're identical return true for
200 if ((compare == 0) &&
201 ((op == T_OP_CMP_EQ) ||
208 * Everything else returns false.
210 * 10/8 == 24/8 --> false
211 * 10/8 <= 24/8 --> false
212 * 10/8 >= 24/8 --> false
218 * Netmasks are different. That limits the
219 * possible results, based on the operator.
229 case T_OP_LT: /* 192/8 < 192.168/16 --> false */
236 case T_OP_GT: /* 192/16 > 192.168/8 --> false */
253 * Do the check byte by byte. If the bytes are
254 * identical, it MAY be a match. If they're different,
260 * All leading bytes are identical.
262 if (common == 0) return true;
265 * Doing bitmasks takes more work.
267 if (common < 8) break;
269 if (a[i] != b[i]) return false;
277 mask <<= (8 - common);
281 if ((a[i] & mask) == ((b[i] & mask))) {
288 /** Compare two attributes using an operator
290 * @param[in] op to use in comparison.
291 * @param[in] a_type of data to compare.
292 * @param[in] a_len of data to compare.
293 * @param[in] a Value to compare.
294 * @param[in] b_type of data to compare.
295 * @param[in] b_len of data to compare.
296 * @param[in] b Value to compare.
297 * @return 1 if true, 0 if false, -1 on error.
299 int value_data_cmp_op(FR_TOKEN op,
300 PW_TYPE a_type, value_data_t const *a, size_t a_len,
301 PW_TYPE b_type, value_data_t const *b, size_t b_len)
305 if (!a || !b) return -1;
308 case PW_TYPE_IPV4_ADDR:
310 case PW_TYPE_IPV4_ADDR: /* IPv4 and IPv4 */
313 case PW_TYPE_IPV4_PREFIX: /* IPv4 and IPv4 Prefix */
314 return value_data_cidr_cmp_op(op, 4, 32, (uint8_t const *) &a->ipaddr,
315 b->ipv4prefix[1], (uint8_t const *) &b->ipv4prefix[2]);
318 fr_strerror_printf("Cannot compare IPv4 with IPv6 address");
322 case PW_TYPE_IPV4_PREFIX: /* IPv4 and IPv4 Prefix */
324 case PW_TYPE_IPV4_ADDR:
325 return value_data_cidr_cmp_op(op, 4, a->ipv4prefix[1],
326 (uint8_t const *) &a->ipv4prefix[2],
327 32, (uint8_t const *) &b->ipaddr);
329 case PW_TYPE_IPV4_PREFIX: /* IPv4 Prefix and IPv4 Prefix */
330 return value_data_cidr_cmp_op(op, 4, a->ipv4prefix[1],
331 (uint8_t const *) &a->ipv4prefix[2],
332 b->ipv4prefix[1], (uint8_t const *) &b->ipv4prefix[2]);
335 fr_strerror_printf("Cannot compare IPv4 with IPv6 address");
339 case PW_TYPE_IPV6_ADDR:
341 case PW_TYPE_IPV6_ADDR: /* IPv6 and IPv6 */
344 case PW_TYPE_IPV6_PREFIX: /* IPv6 and IPv6 Preifx */
345 return value_data_cidr_cmp_op(op, 16, 128, (uint8_t const *) &a->ipv6addr,
346 b->ipv6prefix[1], (uint8_t const *) &b->ipv6prefix[2]);
349 fr_strerror_printf("Cannot compare IPv6 with IPv4 address");
353 case PW_TYPE_IPV6_PREFIX:
355 case PW_TYPE_IPV6_ADDR: /* IPv6 Prefix and IPv6 */
356 return value_data_cidr_cmp_op(op, 16, a->ipv6prefix[1],
357 (uint8_t const *) &a->ipv6prefix[2],
358 128, (uint8_t const *) &b->ipv6addr);
360 case PW_TYPE_IPV6_PREFIX: /* IPv6 Prefix and IPv6 */
361 return value_data_cidr_cmp_op(op, 16, a->ipv6prefix[1],
362 (uint8_t const *) &a->ipv6prefix[2],
363 b->ipv6prefix[1], (uint8_t const *) &b->ipv6prefix[2]);
366 fr_strerror_printf("Cannot compare IPv6 with IPv4 address");
372 compare = value_data_cmp(a_type, a, a_len,
374 if (compare < -1) { /* comparison error */
380 * Now do the operator comparison.
384 return (compare == 0);
387 return (compare != 0);
390 return (compare < 0);
393 return (compare > 0);
396 return (compare <= 0);
399 return (compare >= 0);
406 static char const hextab[] = "0123456789abcdef";
408 /** Convert string value to a value_data_t type
410 * @param[in] ctx to alloc strings in.
411 * @param[out] dst where to write parsed value.
412 * @param[in,out] src_type of value data to create/type of value created.
413 * @param[in] src_enumv DICT_ATTR with string aliases for integer values.
414 * @param[in] src String to convert. Binary safe for variable length values if len is provided.
415 * @param[in] src_len may be < 0 in which case strlen(len) is used to determine length, else src_len
416 * should be the length of the string or sub string to parse.
417 * @param[in] quote quotation character used to drive de-escaping
418 * @return length of data written to out or -1 on parse error.
420 ssize_t value_data_from_str(TALLOC_CTX *ctx, value_data_t *dst,
421 PW_TYPE *src_type, DICT_ATTR const *src_enumv,
422 char const *src, ssize_t src_len, char quote)
431 len = (src_len < 0) ? strlen(src) : (size_t)src_len;
434 * Set size for all fixed length attributes.
436 ret = dict_attr_sizes[*src_type][1]; /* Max length */
439 * It's a variable ret src_type so we just alloc a new buffer
440 * of size len and copy.
449 buff = p = talloc_bstrndup(ctx, src, len);
452 * No de-quoting. Just copy the string.
456 dst->strvalue = buff;
461 * Do escaping for single quoted strings. Only
462 * single quotes get escaped. Everything else is
468 while (q < (buff + len)) {
470 * The quotation character is escaped.
472 if ((q[0] == '\\') &&
480 * Two backslashes get mangled to one.
482 if ((q[0] == '\\') &&
490 * Not escaped, just copy it over.
498 /* Shrink the buffer to the correct size */
499 dst->strvalue = talloc_realloc(ctx, buff, char, ret + 1);
504 * It's "string" or `string`, do all standard
508 while (q < (buff + len)) {
511 if ((c == '\\') && (q >= (buff + len))) {
512 fr_strerror_printf("Invalid escape at end of string");
518 * Fix up \X -> ... the binary form of it.
544 * \" --> ", but only inside of double quoted strings, etc.
553 * \000 --> binary zero character
561 (sscanf(q, "%3o", &x) == 1)) {
567 * Else It's not a recognised escape sequence DON'T
568 * consume the backslash. This is identical
569 * behaviour to bash and most other things that
570 * use backslash escaping.
580 dst->strvalue = talloc_realloc(ctx, buff, char, ret + 1);
585 fr_strerror_printf("Must use 'Attr-26 = ...' instead of 'Vendor-Specific = ...'");
588 /* raw octets: 0x01020304... */
594 * No 0x prefix, just copy verbatim.
596 if ((len < 2) || (strncasecmp(src, "0x", 2) != 0)) {
597 dst->octets = talloc_memdup(ctx, (uint8_t const *)src, len);
598 talloc_set_type(dst->octets, uint8_t);
608 if ((len & 0x01) != 0) {
609 fr_strerror_printf("Length of Hex String is not even, got %zu bytes", len);
614 p = talloc_array(ctx, uint8_t, ret);
615 if (fr_hex2bin(p, ret, src + 2, len) != (size_t)ret) {
617 fr_strerror_printf("Invalid hex data");
625 case PW_TYPE_ABINARY:
626 #ifdef WITH_ASCEND_BINARY
627 if ((len > 1) && (strncasecmp(src, "0x", 2) == 0)) {
630 if (len > ((sizeof(dst->filter) + 1) * 2)) {
631 fr_strerror_printf("Hex data is too large for ascend filter");
635 bin = fr_hex2bin((uint8_t *) &dst->filter, ret, src + 2, len);
637 memset(((uint8_t *) &dst->filter) + bin, 0, ret - bin);
640 if (ascend_parse_filter(dst, src, len) < 0 ) {
641 /* Allow ascend_parse_filter's strerror to bubble up */
646 ret = sizeof(dst->filter);
650 * If Ascend binary is NOT defined,
651 * then fall through to raw octets, so that
652 * the user can at least make them by hand...
657 /* don't use this! */
659 fr_strerror_printf("Cannot parse TLV");
662 case PW_TYPE_IPV4_ADDR:
666 if (fr_pton4(&addr, src, src_len, fr_hostname_lookups, false) < 0) return -1;
669 * We allow v4 addresses to have a /32 suffix as some databases (PostgreSQL)
670 * print them this way.
672 if (addr.prefix != 32) {
673 fr_strerror_printf("Invalid IPv4 mask length \"/%i\". Only \"/32\" permitted "
674 "for non-prefix types", addr.prefix);
678 dst->ipaddr.s_addr = addr.ipaddr.ip4addr.s_addr;
682 case PW_TYPE_IPV4_PREFIX:
686 if (fr_pton4(&addr, src, src_len, fr_hostname_lookups, false) < 0) return -1;
688 dst->ipv4prefix[1] = addr.prefix;
689 memcpy(&dst->ipv4prefix[2], &addr.ipaddr.ip4addr.s_addr, sizeof(dst->ipv4prefix) - 2);
693 case PW_TYPE_IPV6_ADDR:
697 if (fr_pton6(&addr, src, src_len, fr_hostname_lookups, false) < 0) return -1;
700 * We allow v6 addresses to have a /128 suffix as some databases (PostgreSQL)
701 * print them this way.
703 if (addr.prefix != 128) {
704 fr_strerror_printf("Invalid IPv6 mask length \"/%i\". Only \"/128\" permitted "
705 "for non-prefix types", addr.prefix);
709 memcpy(&dst->ipv6addr, addr.ipaddr.ip6addr.s6_addr, sizeof(dst->ipv6addr));
713 case PW_TYPE_IPV6_PREFIX:
717 if (fr_pton6(&addr, src, src_len, fr_hostname_lookups, false) < 0) return -1;
719 dst->ipv6prefix[1] = addr.prefix;
720 memcpy(&dst->ipv6prefix[2], addr.ipaddr.ip6addr.s6_addr, sizeof(dst->ipv6prefix) - 2);
729 * It's a fixed size src_type, copy to a temporary buffer and
730 * \0 terminate if insize >= 0.
733 if (len >= sizeof(buffer)) {
734 fr_strerror_printf("Temporary buffer too small");
738 memcpy(buffer, src, src_len);
739 buffer[src_len] = '\0';
750 * Note that ALL integers are unsigned!
752 i = fr_strtoul(src, &p);
755 * Look for the named src for the given
758 if (src_enumv && *p && !is_whitespace(p)) {
759 if ((dval = dict_valbyname(src_enumv->attr, src_enumv->vendor, src)) == NULL) {
760 fr_strerror_printf("Unknown or invalid value \"%s\" for attribute %s",
761 src, src_enumv->name);
765 dst->byte = dval->value;
768 fr_strerror_printf("Byte value \"%s\" is larger than 255", src);
783 * Note that ALL integers are unsigned!
785 i = fr_strtoul(src, &p);
788 * Look for the named src for the given
791 if (src_enumv && *p && !is_whitespace(p)) {
792 if ((dval = dict_valbyname(src_enumv->attr, src_enumv->vendor, src)) == NULL) {
793 fr_strerror_printf("Unknown or invalid value \"%s\" for attribute %s",
794 src, src_enumv->name);
798 dst->ushort = dval->value;
801 fr_strerror_printf("Short value \"%s\" is larger than 65535", src);
810 case PW_TYPE_INTEGER:
816 * Note that ALL integers are unsigned!
818 i = fr_strtoul(src, &p);
821 * Look for the named src for the given
824 if (src_enumv && *p && !is_whitespace(p)) {
825 if ((dval = dict_valbyname(src_enumv->attr, src_enumv->vendor, src)) == NULL) {
826 fr_strerror_printf("Unknown or invalid value \"%s\" for attribute %s",
827 src, src_enumv->name);
831 dst->integer = dval->value;
834 * Value is always within the limits
841 case PW_TYPE_INTEGER64:
846 * Note that ALL integers are unsigned!
848 if (sscanf(src, "%" PRIu64, &i) != 1) {
849 fr_strerror_printf("Failed parsing \"%s\" as unsigned 64bit integer", src);
859 * time_t may be 64 bits, whule vp_date MUST be 32-bits. We need an
860 * intermediary variable to handle the conversions.
864 if (fr_get_time(src, &date) < 0) {
865 fr_strerror_printf("failed to parse time string \"%s\"", src);
875 if (ifid_aton(src, (void *) dst->ifid) == NULL) {
876 fr_strerror_printf("Failed to parse interface-id string \"%s\"", src);
881 case PW_TYPE_ETHERNET:
883 char const *c1, *c2, *cp;
887 * Convert things which are obviously integers to Ethernet addresses
889 * We assume the number is the bigendian representation of the
892 if (is_integer(src)) {
893 uint64_t integer = htonll(atoll(src));
895 memcpy(dst->ether, &integer, sizeof(dst->ether));
903 c2 = memchr(hextab, tolower((int) cp[0]), 16);
905 } else if ((cp[1] != '\0') && ((cp[2] == ':') || (cp[2] == '\0'))) {
906 c1 = memchr(hextab, tolower((int) cp[0]), 16);
907 c2 = memchr(hextab, tolower((int) cp[1]), 16);
909 if (*cp == ':') cp++;
913 if (!c1 || !c2 || (p_len >= sizeof(dst->ether))) {
914 fr_strerror_printf("failed to parse Ethernet address \"%s\"", src);
917 dst->ether[p_len] = ((c1-hextab)<<4) + (c2-hextab);
924 * Crazy polymorphic (IPv4/IPv6) attribute src_type for WiMAX.
926 * We try and make is saner by replacing the original
927 * da, with either an IPv4 or IPv6 da src_type.
929 * These are not dynamic da, and will have the same vendor
930 * and attribute as the original.
932 case PW_TYPE_COMBO_IP_ADDR:
934 if (inet_pton(AF_INET6, src, &dst->ipv6addr) > 0) {
935 *src_type = PW_TYPE_IPV6_ADDR;
936 ret = dict_attr_sizes[PW_TYPE_COMBO_IP_ADDR][1]; /* size of IPv6 address */
940 if (ip_hton(&ipaddr, AF_INET, src, false) < 0) {
941 fr_strerror_printf("Failed to find IPv4 address for %s", src);
945 *src_type = PW_TYPE_IPV4_ADDR;
946 dst->ipaddr.s_addr = ipaddr.ipaddr.ip4addr.s_addr;
947 ret = dict_attr_sizes[PW_TYPE_COMBO_IP_ADDR][0]; /* size of IPv4 address */
953 /* Damned code for 1 WiMAX attribute */
954 dst->sinteger = (int32_t)strtol(src, NULL, 10);
961 fr_strerror_printf("Unknown attribute type %d", *src_type);
969 /** Performs byte order reversal for types that need it
972 static void value_data_hton(value_data_t *dst, PW_TYPE type, void const *src, size_t src_len)
974 /* 8 byte integers */
976 case PW_TYPE_INTEGER64:
977 dst->integer64 = htonll(*(uint64_t const *)src);
980 /* 4 byte integers */
981 case PW_TYPE_INTEGER:
984 dst->integer = htonl(*(uint32_t const *)src);
987 /* 2 byte integers */
989 dst->ushort = htons(*(uint16_t const *)src);
995 return; /* shouldn't happen */
998 memcpy(dst, src, src_len);
1002 /** Convert one type of value_data_t to another
1004 * @note This should be the canonical function used to convert between data types.
1006 * @param ctx to allocate buffers in (usually the same as dst)
1007 * @param dst Where to write result of casting.
1008 * @param dst_type to cast to.
1009 * @param dst_enumv Enumerated values used to converts strings to integers.
1010 * @param src_type to cast from.
1011 * @param src_enumv Enumerated values used to convert integers to strings.
1012 * @param src Input data.
1013 * @param src_len Input data len.
1014 * @return the length of data in the dst or -1 on error.
1016 ssize_t value_data_cast(TALLOC_CTX *ctx, value_data_t *dst,
1017 PW_TYPE dst_type, DICT_ATTR const *dst_enumv,
1018 PW_TYPE src_type, DICT_ATTR const *src_enumv,
1019 value_data_t const *src, size_t src_len)
1021 if (!fr_assert(dst_type != src_type)) return -1;
1024 * Deserialise a value_data_t
1026 if (src_type == PW_TYPE_STRING) {
1027 return value_data_from_str(ctx, dst, &dst_type, dst_enumv, src->strvalue, src_len, '\0');
1031 * Converts the src data to octets with no processing.
1033 if (dst_type == PW_TYPE_OCTETS) {
1034 value_data_hton(dst, src_type, src, src_len);
1035 dst->octets = talloc_memdup(ctx, dst, src_len);
1036 talloc_set_type(dst->octets, uint8_t);
1037 return talloc_array_length(dst->strvalue);
1041 * Serialise a value_data_t
1043 if (dst_type == PW_TYPE_STRING) {
1044 dst->strvalue = value_data_aprints(ctx, src_type, src_enumv, src, src_len, '\0');
1045 return talloc_array_length(dst->strvalue) - 1;
1048 if ((src_type == PW_TYPE_IFID) &&
1049 (dst_type == PW_TYPE_INTEGER64)) {
1050 memcpy(&dst->integer64, src->ifid, sizeof(src->ifid));
1051 dst->integer64 = htonll(dst->integer64);
1053 return dict_attr_sizes[dst_type][0];
1056 if ((src_type == PW_TYPE_INTEGER64) &&
1057 (dst_type == PW_TYPE_ETHERNET)) {
1061 i = htonll(src->integer64);
1062 memcpy(array, &i, 8);
1065 * For OUIs in the DB.
1067 if ((array[0] != 0) || (array[1] != 0)) return -1;
1069 memcpy(dst->ether, &array[2], 6);
1074 * For integers, we allow the casting of a SMALL type to
1075 * a larger type, but not vice-versa.
1077 if (dst_type == PW_TYPE_INTEGER64) {
1080 dst->integer64 = src->byte;
1084 dst->integer64 = src->ushort;
1087 case PW_TYPE_INTEGER:
1088 dst->integer64 = src->integer;
1092 dst->integer64 = src->date;
1095 case PW_TYPE_OCTETS:
1100 fr_strerror_printf("Invalid cast from %s to %s",
1101 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1102 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1110 * We can cast LONG integers to SHORTER ones, so long
1111 * as the long one is on the LHS.
1113 if (dst_type == PW_TYPE_INTEGER) {
1116 dst->integer = src->byte;
1120 dst->integer = src->ushort;
1123 case PW_TYPE_OCTETS:
1132 if (dst_type == PW_TYPE_SHORT) {
1135 dst->ushort = src->byte;
1138 case PW_TYPE_OCTETS:
1148 * We can cast integers less that < INT_MAX to signed
1150 if (dst_type == PW_TYPE_SIGNED) {
1153 dst->sinteger = src->byte;
1157 dst->sinteger = src->ushort;
1160 case PW_TYPE_INTEGER:
1161 if (src->integer > INT_MAX) {
1162 fr_strerror_printf("Invalid cast: From integer to signed. integer value %u is larger "
1163 "than max signed int and would overflow", src->integer);
1166 dst->sinteger = (int)src->integer;
1169 case PW_TYPE_INTEGER64:
1170 if (src->integer > INT_MAX) {
1171 fr_strerror_printf("Invalid cast: From integer64 to signed. integer64 value %" PRIu64
1172 " is larger than max signed int and would overflow", src->integer64);
1175 dst->sinteger = (int)src->integer64;
1178 case PW_TYPE_OCTETS:
1187 * Conversions between IPv4 addresses, IPv6 addresses, IPv4 prefixes and IPv6 prefixes
1189 * For prefix to ipaddress conversions, we assume that the host portion has already
1192 * We allow casts from v6 to v4 if the v6 address has the correct mapping prefix.
1194 * We only allow casts from prefixes to addresses if the prefix is the the length of
1195 * the address, e.g. 32 for ipv4 128 for ipv6.
1199 * 10 bytes of 0x00 2 bytes of 0xff
1201 static uint8_t const v4_v6_map[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1202 0x00, 0x00, 0x00, 0x00, 0xff, 0xff };
1205 case PW_TYPE_IPV4_ADDR:
1207 case PW_TYPE_IPV6_ADDR:
1208 if (memcmp(src->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map)) != 0) {
1210 fr_strerror_printf("Invalid cast from %s to %s. No IPv4-IPv6 mapping prefix",
1211 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1212 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1216 memcpy(&dst->ipaddr, &src->ipv6addr.s6_addr[sizeof(v4_v6_map)],
1217 sizeof(dst->ipaddr));
1220 case PW_TYPE_IPV4_PREFIX:
1221 if (src->ipv4prefix[1] != 32) {
1223 fr_strerror_printf("Invalid cast from %s to %s. Only /32 prefixes may be "
1224 "cast to IP address types",
1225 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1226 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1230 memcpy(&dst->ipaddr, &src->ipv4prefix[2], sizeof(dst->ipaddr));
1233 case PW_TYPE_IPV6_PREFIX:
1234 if (src->ipv6prefix[1] != 128) {
1236 fr_strerror_printf("Invalid cast from %s to %s. Only /128 prefixes may be "
1237 "cast to IP address types",
1238 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1239 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1242 if (memcmp(&src->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map)) != 0) {
1243 goto bad_v6_prefix_map;
1245 memcpy(&dst->ipaddr, &src->ipv6prefix[2 + sizeof(v4_v6_map)],
1246 sizeof(dst->ipaddr));
1254 case PW_TYPE_IPV6_ADDR:
1256 case PW_TYPE_IPV4_ADDR:
1257 /* Add the v4/v6 mapping prefix */
1258 memcpy(dst->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map));
1259 memcpy(&dst->ipv6addr.s6_addr[sizeof(v4_v6_map)], &src->ipaddr,
1260 sizeof(dst->ipv6addr.s6_addr) - sizeof(v4_v6_map));
1264 case PW_TYPE_IPV4_PREFIX:
1265 if (src->ipv4prefix[1] != 32) goto bad_v4_prefix_len;
1267 /* Add the v4/v6 mapping prefix */
1268 memcpy(dst->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map));
1269 memcpy(&dst->ipv6addr.s6_addr[sizeof(v4_v6_map)], &src->ipv4prefix[2],
1270 sizeof(dst->ipv6addr.s6_addr) - sizeof(v4_v6_map));
1273 case PW_TYPE_IPV6_PREFIX:
1274 if (src->ipv4prefix[1] != 128) goto bad_v6_prefix_len;
1276 memcpy(dst->ipv6addr.s6_addr, &src->ipv6prefix[2], sizeof(dst->ipv6addr.s6_addr));
1284 case PW_TYPE_IPV4_PREFIX:
1286 case PW_TYPE_IPV4_ADDR:
1287 memcpy(&dst->ipv4prefix[2], &src->ipaddr, sizeof(dst->ipv4prefix) - 2);
1288 dst->ipv4prefix[0] = 0;
1289 dst->ipv4prefix[1] = 32;
1292 case PW_TYPE_IPV6_ADDR:
1293 if (memcmp(src->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map)) != 0) {
1294 goto bad_v6_prefix_map;
1296 memcpy(&dst->ipv4prefix[2], &src->ipv6addr.s6_addr[sizeof(v4_v6_map)],
1297 sizeof(dst->ipv4prefix) - 2);
1298 dst->ipv4prefix[0] = 0;
1299 dst->ipv4prefix[1] = 32;
1302 case PW_TYPE_IPV6_PREFIX:
1303 if (memcmp(&src->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map)) != 0) {
1304 goto bad_v6_prefix_map;
1308 * Prefix must be >= 96 bits. If it's < 96 bytes and the
1309 * above check passed, the v6 address wasn't masked
1310 * correctly when it was packet into a value_data_t.
1312 if (!fr_assert(src->ipv6prefix[1] >= (sizeof(v4_v6_map) * 8))) return -1;
1314 memcpy(&dst->ipv4prefix[2], &src->ipv6prefix[2 + sizeof(v4_v6_map)],
1315 sizeof(dst->ipv4prefix) - 2);
1316 dst->ipv4prefix[0] = 0;
1317 dst->ipv4prefix[1] = src->ipv6prefix[1] - (sizeof(v4_v6_map) * 8);
1325 case PW_TYPE_IPV6_PREFIX:
1327 case PW_TYPE_IPV4_ADDR:
1328 /* Add the v4/v6 mapping prefix */
1329 memcpy(&dst->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map));
1330 memcpy(&dst->ipv6prefix[2 + sizeof(v4_v6_map)], &src->ipaddr,
1331 (sizeof(dst->ipv6prefix) - 2) - sizeof(v4_v6_map));
1332 dst->ipv6prefix[0] = 0;
1333 dst->ipv6prefix[1] = 128;
1336 case PW_TYPE_IPV4_PREFIX:
1337 /* Add the v4/v6 mapping prefix */
1338 memcpy(&dst->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map));
1339 memcpy(&dst->ipv6prefix[2 + sizeof(v4_v6_map)], &src->ipv4prefix[2],
1340 (sizeof(dst->ipv6prefix) - 2) - sizeof(v4_v6_map));
1341 dst->ipv6prefix[0] = 0;
1342 dst->ipv6prefix[1] = (sizeof(v4_v6_map) * 8) + src->ipv4prefix[1];
1345 case PW_TYPE_IPV6_ADDR:
1346 memcpy(&dst->ipv6prefix[2], &src->ipv6addr, sizeof(dst->ipv6prefix) - 2);
1347 dst->ipv6prefix[0] = 0;
1348 dst->ipv6prefix[1] = 128;
1363 * The attribute we've found has to have a size which is
1364 * compatible with the type of the destination cast.
1366 if ((src_len < dict_attr_sizes[dst_type][0]) ||
1367 (src_len > dict_attr_sizes[dst_type][1])) {
1368 char const *src_type_name;
1370 src_type_name = fr_int2str(dict_attr_types, src_type, "<INVALID>");
1371 fr_strerror_printf("Invalid cast from %s to %s. Length should be between %zu and %zu but is %zu",
1373 fr_int2str(dict_attr_types, dst_type, "<INVALID>"),
1374 dict_attr_sizes[dst_type][0], dict_attr_sizes[dst_type][1],
1379 if (src_type == PW_TYPE_OCTETS) {
1381 value_data_hton(dst, dst_type, src->octets, src_len);
1386 * Convert host order to network byte order.
1388 if ((dst_type == PW_TYPE_IPV4_ADDR) &&
1389 ((src_type == PW_TYPE_INTEGER) ||
1390 (src_type == PW_TYPE_DATE) ||
1391 (src_type == PW_TYPE_SIGNED))) {
1392 dst->ipaddr.s_addr = htonl(src->integer);
1394 } else if ((src_type == PW_TYPE_IPV4_ADDR) &&
1395 ((dst_type == PW_TYPE_INTEGER) ||
1396 (dst_type == PW_TYPE_DATE) ||
1397 (dst_type == PW_TYPE_SIGNED))) {
1398 dst->integer = htonl(src->ipaddr.s_addr);
1400 } else { /* they're of the same byte order */
1401 memcpy(&dst, &src, src_len);
1407 /** Copy value data verbatim duplicating any buffers
1409 * @param ctx To allocate buffers in.
1410 * @param dst Where to copy value_data to.
1411 * @param src_type Type of src.
1412 * @param src Where to copy value_data from.
1413 * @param src_len Where
1415 ssize_t value_data_copy(TALLOC_CTX *ctx, value_data_t *dst, PW_TYPE src_type,
1416 const value_data_t *src, size_t src_len)
1420 memcpy(dst, src, sizeof(*src));
1423 case PW_TYPE_STRING:
1424 dst->strvalue = talloc_bstrndup(ctx, src->strvalue, src_len);
1425 if (!dst->strvalue) return -1;
1428 case PW_TYPE_OCTETS:
1429 dst->octets = talloc_memdup(ctx, src->octets, src_len);
1430 talloc_set_type(dst->strvalue, uint8_t);
1431 if (!dst->octets) return -1;
1440 /** Print one attribute value to a string
1443 char *value_data_aprints(TALLOC_CTX *ctx,
1444 PW_TYPE type, DICT_ATTR const *enumv, value_data_t const *data,
1445 size_t inlen, char quote)
1451 case PW_TYPE_STRING:
1456 p = talloc_bstrndup(ctx, data->strvalue, inlen);
1457 if (!p) return NULL;
1458 talloc_set_type(p, char);
1462 /* Gets us the size of the buffer we need to alloc */
1463 len = fr_prints_len(data->strvalue, inlen, quote);
1464 p = talloc_array(ctx, char, len);
1465 if (!p) return NULL;
1467 ret = fr_prints(p, len, data->strvalue, inlen, quote);
1468 if (!fr_assert(ret == (len - 1))) {
1475 case PW_TYPE_INTEGER:
1488 DICT_VALUE const *dv;
1490 if (enumv && (dv = dict_valbyattr(enumv->attr, enumv->vendor, i))) {
1491 p = talloc_typed_strdup(ctx, dv->name);
1493 p = talloc_typed_asprintf(ctx, "%u", i);
1498 case PW_TYPE_SIGNED:
1499 p = talloc_typed_asprintf(ctx, "%d", data->sinteger);
1502 case PW_TYPE_INTEGER64:
1503 p = talloc_typed_asprintf(ctx, "%" PRIu64 , data->integer64);
1506 case PW_TYPE_ETHERNET:
1507 p = talloc_typed_asprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x",
1508 data->ether[0], data->ether[1],
1509 data->ether[2], data->ether[3],
1510 data->ether[4], data->ether[5]);
1513 case PW_TYPE_ABINARY:
1514 #ifdef WITH_ASCEND_BINARY
1515 p = talloc_array(ctx, char, 128);
1516 if (!p) return NULL;
1517 print_abinary(p, 128, (uint8_t *) &data->filter, inlen, 0);
1523 case PW_TYPE_OCTETS:
1524 p = talloc_array(ctx, char, 2 + 1 + inlen * 2);
1525 if (!p) return NULL;
1529 fr_bin2hex(p + 2, data->octets, inlen);
1539 p = talloc_array(ctx, char, 64);
1540 strftime(p, 64, "%b %e %Y %H:%M:%S %Z",
1541 localtime_r(&t, &s_tm));
1546 * We need to use the proper inet_ntop functions for IP
1547 * addresses, else the output might not match output of
1548 * other functions, which makes testing difficult.
1550 * An example is tunnelled ipv4 in ipv6 addresses.
1552 case PW_TYPE_IPV4_ADDR:
1553 case PW_TYPE_IPV4_PREFIX:
1555 char buff[INET_ADDRSTRLEN + 4]; // + /prefix
1558 value_data_prints(buff, sizeof(buff), type, enumv, data, inlen, '\0');
1560 p = talloc_typed_strdup(ctx, buff);
1564 case PW_TYPE_IPV6_ADDR:
1565 case PW_TYPE_IPV6_PREFIX:
1567 char buff[INET6_ADDRSTRLEN + 4]; // + /prefix
1570 value_data_prints(buff, sizeof(buff), type, enumv, data, inlen, '\0');
1572 p = talloc_typed_strdup(ctx, buff);
1577 p = talloc_typed_asprintf(ctx, "%x:%x:%x:%x",
1578 (data->ifid[0] << 8) | data->ifid[1],
1579 (data->ifid[2] << 8) | data->ifid[3],
1580 (data->ifid[4] << 8) | data->ifid[5],
1581 (data->ifid[6] << 8) | data->ifid[7]);
1584 case PW_TYPE_BOOLEAN:
1585 p = talloc_typed_strdup(ctx, data->byte ? "yes" : "no");
1589 * Don't add default here
1591 case PW_TYPE_INVALID:
1592 case PW_TYPE_COMBO_IP_ADDR:
1593 case PW_TYPE_COMBO_IP_PREFIX:
1595 case PW_TYPE_EXTENDED:
1596 case PW_TYPE_LONG_EXTENDED:
1599 case PW_TYPE_TIMEVAL:
1609 /** Print the value of an attribute to a string
1611 * @note return value should be checked with is_truncated.
1612 * @note Will always \0 terminate unless outlen == 0.
1614 * @param out Where to write the printed version of the attribute value.
1615 * @param outlen Length of the output buffer.
1616 * @param type of data being printed.
1617 * @param enumv Enumerated string values for integer types.
1618 * @param data to print.
1619 * @param inlen Length of data.
1620 * @param quote char to escape in string output.
1621 * @return the number of bytes written to the out buffer, or a number >= outlen if truncation has occurred.
1623 size_t value_data_prints(char *out, size_t outlen,
1624 PW_TYPE type, DICT_ATTR const *enumv, value_data_t const *data,
1625 ssize_t inlen, char quote)
1628 char buf[1024]; /* Interim buffer to use with poorly behaved printing functions */
1629 char const *a = NULL;
1635 size_t len = 0, freespace = outlen;
1637 if (!data) return 0;
1638 if (outlen == 0) return inlen;
1645 case PW_TYPE_STRING:
1648 * Ensure that WE add the quotation marks around the string.
1651 if (freespace < 3) return inlen + 2;
1656 len = fr_prints(p, freespace, data->strvalue, inlen, quote);
1657 /* always terminate the quoted string with another quote */
1658 if (len >= (freespace - 1)) {
1659 /* Use out not p as we're operating on the entire buffer */
1660 out[outlen - 2] = (char) quote;
1661 out[outlen - 1] = '\0';
1667 *p++ = (char) quote;
1674 return fr_prints(out, outlen, data->strvalue, inlen, quote);
1676 case PW_TYPE_INTEGER:
1688 /* Normal, non-tagged attribute */
1689 if (enumv && (v = dict_valbyattr(enumv->attr, enumv->vendor, i)) != NULL) {
1693 /* should never be truncated */
1694 len = snprintf(buf, sizeof(buf), "%u", i);
1699 case PW_TYPE_INTEGER64:
1700 return snprintf(out, outlen, "%" PRIu64, data->integer64);
1705 len = strftime(buf, sizeof(buf) - 1, "%%%b %e %Y %H:%M:%S %Z%%", localtime_r(&t, &s_tm));
1706 buf[0] = (char) quote;
1707 buf[len - 1] = (char) quote;
1710 len = strftime(buf, sizeof(buf), "%b %e %Y %H:%M:%S %Z", localtime_r(&t, &s_tm));
1715 case PW_TYPE_SIGNED: /* Damned code for 1 WiMAX attribute */
1716 len = snprintf(buf, sizeof(buf), "%d", data->sinteger);
1720 case PW_TYPE_IPV4_ADDR:
1721 a = inet_ntop(AF_INET, &(data->ipaddr), buf, sizeof(buf));
1725 case PW_TYPE_ABINARY:
1726 #ifdef WITH_ASCEND_BINARY
1727 print_abinary(buf, sizeof(buf), (uint8_t const *) data->filter, inlen, quote);
1734 case PW_TYPE_OCTETS:
1739 /* Return the number of bytes we would have written */
1740 len = (inlen * 2) + 2;
1741 if (freespace <= 1) {
1748 if (freespace <= 1) {
1755 if (freespace <= 2) {
1760 /* Get maximum number of bytes we can encode given freespace */
1761 max = ((freespace % 2) ? freespace - 1 : freespace - 2) / 2;
1762 fr_bin2hex(out, data->octets, ((size_t)inlen > max) ? max : (size_t)inlen);
1767 a = ifid_ntoa(buf, sizeof(buf), data->ifid);
1771 case PW_TYPE_IPV6_ADDR:
1772 a = inet_ntop(AF_INET6, &data->ipv6addr, buf, sizeof(buf));
1776 case PW_TYPE_IPV6_PREFIX:
1778 struct in6_addr addr;
1783 memcpy(&addr, &(data->ipv6prefix[2]), sizeof(addr));
1785 a = inet_ntop(AF_INET6, &addr, buf, sizeof(buf));
1791 len += snprintf(p, sizeof(buf) - len, "/%u", (unsigned int) data->ipv6prefix[1]);
1796 case PW_TYPE_IPV4_PREFIX:
1798 struct in_addr addr;
1803 memcpy(&addr, &(data->ipv4prefix[2]), sizeof(addr));
1805 a = inet_ntop(AF_INET, &addr, buf, sizeof(buf));
1811 len += snprintf(p, sizeof(buf) - len, "/%u", (unsigned int) (data->ipv4prefix[1] & 0x3f));
1816 case PW_TYPE_ETHERNET:
1817 return snprintf(out, outlen, "%02x:%02x:%02x:%02x:%02x:%02x",
1818 data->ether[0], data->ether[1],
1819 data->ether[2], data->ether[3],
1820 data->ether[4], data->ether[5]);
1823 * Don't add default here
1825 case PW_TYPE_INVALID:
1826 case PW_TYPE_COMBO_IP_ADDR:
1827 case PW_TYPE_COMBO_IP_PREFIX:
1828 case PW_TYPE_EXTENDED:
1829 case PW_TYPE_LONG_EXTENDED:
1832 case PW_TYPE_TIMEVAL:
1833 case PW_TYPE_BOOLEAN:
1840 if (a) strlcpy(out, a, outlen);
1842 return len; /* Return the number of bytes we would of written (for truncation detection) */