2 * valuepair.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 dst->strvalue = p = talloc_memdup(ctx, src, len + 1);
451 talloc_set_type(p, char);
454 * No de-quoting. Just copy the string.
462 * Do escaping for single quoted strings. Only
463 * single quotes get escaped. Everything else is
470 * Escape ONLY the quotation character.
471 * Everything else is left as-is.
473 while (q < (dst->strvalue + len)) {
474 if ((q[0] == '\\') &&
482 * Not escaped, just copy it over.
488 ret = p - dst->strvalue;
489 dst->ptr = talloc_realloc(ctx, dst->ptr, char, ret + 1);
494 * It's "string" or `string`, do all standard
498 while (q < (dst->strvalue + len)) {
501 if ((c == '\\') && (q >= (dst->strvalue + len))) {
502 fr_strerror_printf("Invalid escape at end of string");
507 * Fix up \X -> ... the binary form of it.
533 * \" --> ", but only inside of double quoted strings, etc.
542 * \000 --> binary zero character
550 (sscanf(q, "%3o", &x) == 1)) {
556 * Else It's not a recognised escape sequence DON'T
557 * consume the backslash. This is identical
558 * behaviour to bash and most other things that
559 * use backslash escaping.
568 ret = p - dst->strvalue;
569 dst->ptr = talloc_realloc(ctx, dst->ptr, char, ret + 1);
573 /* raw octets: 0x01020304... */
575 if (strcmp(src, "ANY") == 0) {
578 } /* else it's hex */
585 * No 0x prefix, just copy verbatim.
587 if ((len < 2) || (strncasecmp(src, "0x", 2) != 0)) {
588 dst->octets = talloc_memdup(ctx, (uint8_t const *)src, len);
589 talloc_set_type(dst->octets, uint8_t);
600 if ((len & 0x01) != 0) {
601 fr_strerror_printf("Length of Hex String is not even, got %zu bytes", ret);
606 p = talloc_array(ctx, uint8_t, ret);
607 if (fr_hex2bin(p, ret, src + 2, len) != (size_t)ret) {
609 fr_strerror_printf("Invalid hex data");
617 case PW_TYPE_ABINARY:
618 #ifdef WITH_ASCEND_BINARY
619 if ((len > 1) && (strncasecmp(src, "0x", 2) == 0)) goto do_octets;
621 if (ascend_parse_filter(dst, src, len) < 0 ) {
622 /* Allow ascend_parse_filter's strerror to bubble up */
625 ret = sizeof(dst->filter);
629 * If Ascend binary is NOT defined,
630 * then fall through to raw octets, so that
631 * the user can at least make them by hand...
636 /* don't use this! */
641 if ((len < 2) || (len & 0x01) || (strncasecmp(src, "0x", 2) != 0)) {
642 fr_strerror_printf("Invalid TLV specification");
648 p = talloc_array(ctx, uint8_t, ret);
650 fr_strerror_printf("No memory");
653 if (fr_hex2bin(p, ret, src + 2, len) != (size_t)ret) {
654 fr_strerror_printf("Invalid hex data in 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 = vp_data_aprints_value(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;
1091 case PW_TYPE_OCTETS:
1096 fr_strerror_printf("Invalid cast from %s to %s",
1097 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1098 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1106 * We can cast LONG integers to SHORTER ones, so long
1107 * as the long one is on the LHS.
1109 if (dst_type == PW_TYPE_INTEGER) {
1112 dst->integer = src->byte;
1116 dst->integer = src->ushort;
1119 case PW_TYPE_OCTETS:
1128 if (dst_type == PW_TYPE_SHORT) {
1131 dst->ushort = src->byte;
1134 case PW_TYPE_OCTETS:
1144 * Conversions between IPv4 addresses, IPv6 addresses, IPv4 prefixes and IPv6 prefixes
1146 * For prefix to ipaddress conversions, we assume that the host portion has already
1149 * We allow casts from v6 to v4 if the v6 address has the correct mapping prefix.
1151 * We only allow casts from prefixes to addresses if the prefix is the the length of
1152 * the address, e.g. 32 for ipv4 128 for ipv6.
1156 * 10 bytes of 0x00 2 bytes of 0xff
1158 static uint8_t const v4_v6_map[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1159 0x00, 0x00, 0x00, 0x00, 0xff, 0xff };
1162 case PW_TYPE_IPV4_ADDR:
1164 case PW_TYPE_IPV6_ADDR:
1165 if (memcmp(src->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map)) != 0) {
1167 fr_strerror_printf("Invalid cast from %s to %s. No IPv4-IPv6 mapping prefix",
1168 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1169 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1173 memcpy(&dst->ipaddr, &src->ipv6addr.s6_addr[sizeof(v4_v6_map)],
1174 sizeof(dst->ipaddr));
1177 case PW_TYPE_IPV4_PREFIX:
1178 if (src->ipv4prefix[1] != 32) {
1180 fr_strerror_printf("Invalid cast from %s to %s. Only /32 prefixes may be "
1181 "cast to IP address types",
1182 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1183 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1187 memcpy(&dst->ipaddr, &src->ipv4prefix[2], sizeof(dst->ipaddr));
1190 case PW_TYPE_IPV6_PREFIX:
1191 if (src->ipv6prefix[1] != 128) {
1193 fr_strerror_printf("Invalid cast from %s to %s. Only /128 prefixes may be "
1194 "cast to IP address types",
1195 fr_int2str(dict_attr_types, src_type, "<INVALID>"),
1196 fr_int2str(dict_attr_types, dst_type, "<INVALID>"));
1199 if (memcmp(&src->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map)) != 0) {
1200 goto bad_v6_prefix_map;
1202 memcpy(&dst->ipaddr, &src->ipv6prefix[2 + sizeof(v4_v6_map)],
1203 sizeof(dst->ipaddr));
1211 case PW_TYPE_IPV6_ADDR:
1213 case PW_TYPE_IPV4_ADDR:
1214 /* Add the v4/v6 mapping prefix */
1215 memcpy(dst->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map));
1216 memcpy(&dst->ipv6addr.s6_addr[sizeof(v4_v6_map)], &src->ipaddr,
1217 sizeof(dst->ipv6addr.s6_addr) - sizeof(v4_v6_map));
1221 case PW_TYPE_IPV4_PREFIX:
1222 if (src->ipv4prefix[1] != 32) goto bad_v4_prefix_len;
1224 /* Add the v4/v6 mapping prefix */
1225 memcpy(dst->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map));
1226 memcpy(&dst->ipv6addr.s6_addr[sizeof(v4_v6_map)], &src->ipv4prefix[2],
1227 sizeof(dst->ipv6addr.s6_addr) - sizeof(v4_v6_map));
1230 case PW_TYPE_IPV6_PREFIX:
1231 if (src->ipv4prefix[1] != 128) goto bad_v6_prefix_len;
1233 memcpy(dst->ipv6addr.s6_addr, &src->ipv6prefix[2], sizeof(dst->ipv6addr.s6_addr));
1241 case PW_TYPE_IPV4_PREFIX:
1243 case PW_TYPE_IPV4_ADDR:
1244 memcpy(&dst->ipv4prefix[2], &src->ipaddr, sizeof(dst->ipv4prefix) - 2);
1245 dst->ipv4prefix[0] = 0;
1246 dst->ipv4prefix[1] = 32;
1249 case PW_TYPE_IPV6_ADDR:
1250 if (memcmp(src->ipv6addr.s6_addr, v4_v6_map, sizeof(v4_v6_map)) != 0) {
1251 goto bad_v6_prefix_map;
1253 memcpy(&dst->ipv4prefix[2], &src->ipv6addr.s6_addr[sizeof(v4_v6_map)],
1254 sizeof(dst->ipv4prefix) - 2);
1255 dst->ipv4prefix[0] = 0;
1256 dst->ipv4prefix[1] = 32;
1259 case PW_TYPE_IPV6_PREFIX:
1260 if (memcmp(&src->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map)) != 0) {
1261 goto bad_v6_prefix_map;
1265 * Prefix must be >= 96 bits. If it's < 96 bytes and the
1266 * above check passed, the v6 address wasn't masked
1267 * correctly when it was packet into a value_data_t.
1269 if (!fr_assert(src->ipv6prefix[1] >= (sizeof(v4_v6_map) * 8))) return -1;
1271 memcpy(&dst->ipv4prefix[2], &src->ipv6prefix[2 + sizeof(v4_v6_map)],
1272 sizeof(dst->ipv4prefix) - 2);
1273 dst->ipv4prefix[0] = 0;
1274 dst->ipv4prefix[1] = src->ipv6prefix[1] - (sizeof(v4_v6_map) * 8);
1282 case PW_TYPE_IPV6_PREFIX:
1284 case PW_TYPE_IPV4_ADDR:
1285 /* Add the v4/v6 mapping prefix */
1286 memcpy(&dst->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map));
1287 memcpy(&dst->ipv6prefix[2 + sizeof(v4_v6_map)], &src->ipaddr,
1288 (sizeof(dst->ipv6prefix) - 2) - sizeof(v4_v6_map));
1289 dst->ipv6prefix[0] = 0;
1290 dst->ipv6prefix[1] = 128;
1293 case PW_TYPE_IPV4_PREFIX:
1294 /* Add the v4/v6 mapping prefix */
1295 memcpy(&dst->ipv6prefix[2], v4_v6_map, sizeof(v4_v6_map));
1296 memcpy(&dst->ipv6prefix[2 + sizeof(v4_v6_map)], &src->ipv4prefix[2],
1297 (sizeof(dst->ipv6prefix) - 2) - sizeof(v4_v6_map));
1298 dst->ipv6prefix[0] = 0;
1299 dst->ipv6prefix[1] = (sizeof(v4_v6_map) * 8) + src->ipv4prefix[1];
1302 case PW_TYPE_IPV6_ADDR:
1303 memcpy(&dst->ipv6prefix[2], &src->ipv6addr, sizeof(dst->ipv6prefix) - 2);
1304 dst->ipv6prefix[0] = 0;
1305 dst->ipv6prefix[1] = 128;
1320 * The attribute we've found has to have a size which is
1321 * compatible with the type of the destination cast.
1323 if ((src_len < dict_attr_sizes[dst_type][0]) ||
1324 (src_len > dict_attr_sizes[dst_type][1])) {
1325 char const *src_type_name;
1327 src_type_name = fr_int2str(dict_attr_types, src_type, "<INVALID>");
1328 fr_strerror_printf("Invalid cast from %s to %s. Length should be between %zu and %zu but is %zu",
1330 fr_int2str(dict_attr_types, dst_type, "<INVALID>"),
1331 dict_attr_sizes[dst_type][0], dict_attr_sizes[dst_type][1],
1336 if (src_type == PW_TYPE_OCTETS) {
1338 value_data_hton(dst, dst_type, src->octets, src_len);
1343 * Convert host order to network byte order.
1345 if ((dst_type == PW_TYPE_IPV4_ADDR) &&
1346 ((src_type == PW_TYPE_INTEGER) ||
1347 (src_type == PW_TYPE_DATE) ||
1348 (src_type == PW_TYPE_SIGNED))) {
1349 dst->ipaddr.s_addr = htonl(src->integer);
1351 } else if ((src_type == PW_TYPE_IPV4_ADDR) &&
1352 ((dst_type == PW_TYPE_INTEGER) ||
1353 (dst_type == PW_TYPE_DATE) ||
1354 (dst_type == PW_TYPE_SIGNED))) {
1355 dst->integer = htonl(src->ipaddr.s_addr);
1357 } else { /* they're of the same byte order */
1358 memcpy(&dst, &src, src_len);
1364 /** Copy value data verbatim duplicating any buffers
1366 * @param ctx To allocate buffers in.
1367 * @param dst Where to copy value_data to.
1368 * @param src_type Type of src.
1369 * @param src Where to copy value_data from.
1370 * @param src_len Where
1372 ssize_t value_data_copy(TALLOC_CTX *ctx, value_data_t *dst, PW_TYPE src_type,
1373 const value_data_t *src, size_t src_len)
1377 memcpy(dst, src, sizeof(*src));
1380 case PW_TYPE_STRING:
1381 dst->strvalue = talloc_memdup(ctx, src->strvalue, src_len + 1);
1382 if (!dst->strvalue) return -1;
1383 talloc_set_type(dst->strvalue, char);
1386 case PW_TYPE_OCTETS:
1387 dst->octets = talloc_memdup(ctx, src->octets, src_len);
1388 talloc_set_type(dst->strvalue, uint8_t);
1389 if (!dst->octets) return -1;