2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 * @brief String expansion ("translation"). Implements %Attribute -> value
23 * @copyright 2000,2006 The FreeRADIUS server project
24 * @copyright 2000 Alan DeKok <aland@ox.org>
29 #include <freeradius-devel/radiusd.h>
30 #include <freeradius-devel/parser.h>
31 #include <freeradius-devel/rad_assert.h>
32 #include <freeradius-devel/base64.h>
36 typedef struct xlat_t {
37 char name[MAX_STRING_LEN]; //!< Name of the xlat expansion.
38 int length; //!< Length of name.
39 void *instance; //!< Module instance passed to xlat and escape functions.
40 RAD_XLAT_FUNC func; //!< xlat function.
41 RADIUS_ESCAPE_STRING escape; //!< Escape function to apply to dynamic input to func.
42 bool internal; //!< If true, cannot be redefined.
46 XLAT_LITERAL, //!< Literal string
47 XLAT_PERCENT, //!< Literal string with %v
48 XLAT_MODULE, //!< xlat module
49 XLAT_VIRTUAL, //!< virtual attribute
50 XLAT_ATTRIBUTE, //!< xlat attribute
52 XLAT_REGEX, //!< regex reference
54 XLAT_ALTERNATE //!< xlat conditional syntax :-
58 char const *fmt; //!< The format string.
59 size_t len; //!< Length of the format string.
61 xlat_state_t type; //!< type of this expansion.
62 xlat_exp_t *next; //!< Next in the list.
64 xlat_exp_t *child; //!< Nested expansion.
65 xlat_exp_t *alternate; //!< Alternative expansion if this one expanded to a zero length string.
67 value_pair_tmpl_t attr; //!< An attribute template.
68 xlat_t const *xlat; //!< The xlat expansion to expand format with.
71 typedef struct xlat_out {
72 char const *out; //!< Output data.
73 size_t len; //!< Length of the output string.
76 static rbtree_t *xlat_root = NULL;
79 static char const * const xlat_foreach_names[] = {"Foreach-Variable-0",
92 #if REQUEST_MAX_REGEX > 8
93 # error Please fix the following line
95 static int xlat_inst[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }; /* up to 8 for regex */
97 char const *radiusd_short_version = RADIUSD_VERSION_STRING;
99 /** Print length of its RHS.
102 static ssize_t xlat_strlen(UNUSED void *instance, UNUSED REQUEST *request,
103 char const *fmt, char *out, size_t outlen)
105 snprintf(out, outlen, "%u", (unsigned int) strlen(fmt));
109 /** Print the size of the attribute in bytes.
112 static ssize_t xlat_length(UNUSED void *instance, UNUSED REQUEST *request,
113 char const *fmt, char *out, size_t outlen)
116 while (isspace((int) *fmt)) fmt++;
118 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) {
123 snprintf(out, outlen, "%zu", vp->length);
127 /** Print data as integer, not as VALUE.
130 static ssize_t xlat_integer(UNUSED void *instance, REQUEST *request,
131 char const *fmt, char *out, size_t outlen)
135 uint64_t int64 = 0; /* Needs to be initialised to zero */
136 uint32_t int32 = 0; /* Needs to be initialised to zero */
138 while (isspace((int) *fmt)) fmt++;
140 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) {
145 switch (vp->da->type) {
148 if (vp->length > 8) {
152 if (vp->length > 4) {
153 memcpy(&int64, vp->vp_octets, vp->length);
154 return snprintf(out, outlen, "%" PRIu64, htonll(int64));
157 memcpy(&int32, vp->vp_octets, vp->length);
158 return snprintf(out, outlen, "%i", htonl(int32));
160 case PW_TYPE_INTEGER64:
161 return snprintf(out, outlen, "%" PRIu64, vp->vp_integer64);
164 * IP addresses are treated specially, as parsing functions assume the value
165 * is bigendian and will convert it for us.
167 case PW_TYPE_IPV4_ADDR:
168 return snprintf(out, outlen, "%u", htonl(vp->vp_ipaddr));
170 case PW_TYPE_IPV4_PREFIX:
171 return snprintf(out, outlen, "%u", htonl((*(uint32_t *)(vp->vp_ipv4prefix + 2))));
173 case PW_TYPE_INTEGER:
175 return snprintf(out, outlen, "%u", vp->vp_integer);
177 return snprintf(out, outlen, "%u", (unsigned int) vp->vp_byte);
179 return snprintf(out, outlen, "%u", (unsigned int) vp->vp_short);
182 * Ethernet is weird... It's network related, so we assume to it should be
185 case PW_TYPE_ETHERNET:
186 memcpy(&int64, &vp->vp_ether, vp->length);
187 return snprintf(out, outlen, "%" PRIu64, htonll(int64));
190 return snprintf(out, outlen, "%i", vp->vp_signed);
192 case PW_TYPE_IPV6_ADDR:
193 return fr_prints_uint128(out, outlen, ntohlll(*(uint128_t const *) &vp->vp_ipv6addr));
195 case PW_TYPE_IPV6_PREFIX:
196 return fr_prints_uint128(out, outlen, ntohlll(*(uint128_t const *) &(vp->vp_ipv6prefix[2])));
202 REDEBUG("Type '%s' of length %zu cannot be converted to integer",
203 fr_int2str(dict_attr_types, vp->da->type, "???"), vp->length);
209 /** Print data as hex, not as VALUE.
212 static ssize_t xlat_hex(UNUSED void *instance, REQUEST *request,
213 char const *fmt, char *out, size_t outlen)
221 uint8_t const *buff = NULL;
223 while (isspace((int) *fmt)) fmt++;
225 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) {
234 if (vp->da->type == PW_TYPE_OCTETS) {
238 * Cast the value_data_t of the VP to an octets string and
242 ret = value_data_cast(request, &dst, PW_TYPE_OCTETS, NULL, vp->da->type,
243 NULL, &vp->data, vp->length);
245 REDEBUG("%s", fr_strerror());
249 p = buff = dst.octets;
255 * Don't truncate the data.
257 if (outlen < (len * 2)) {
258 rad_const_free(buff);
262 for (i = 0; i < len; i++) {
263 snprintf(out + 2*i, 3, "%02x", p[i]);
265 rad_const_free(buff);
270 /** Return the tag of an attribute reference
273 static ssize_t xlat_tag(UNUSED void *instance, REQUEST *request,
274 char const *fmt, char *out, size_t outlen)
278 while (isspace((int) *fmt)) fmt++;
280 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) {
285 if (!vp->da->flags.has_tag || !TAG_VALID(vp->tag)) {
290 return snprintf(out, outlen, "%u", vp->tag);
293 /** Print out attribute info
295 * Prints out all instances of a current attribute, or all attributes in a list.
297 * At higher debugging levels, also prints out alternative decodings of the same
298 * value. This is helpful to determine types for unknown attributes of long
299 * passed vendors, or just crazy/broken NAS.
301 * It's also useful for exposing issues in the packet decoding functions, as in
302 * some cases they get fed random garbage data.
304 * This expands to a zero length string.
306 static ssize_t xlat_debug_attr(UNUSED void *instance, REQUEST *request, char const *fmt,
307 char *out, UNUSED size_t outlen)
309 VALUE_PAIR *vp, **vps;
314 value_pair_tmpl_t vpt;
316 if (!RDEBUG_ENABLED2) {
321 while (isspace((int) *fmt)) fmt++;
323 if (tmpl_from_attr_str(&vpt, fmt, REQUEST_CURRENT, PAIR_LIST_REQUEST) <= 0) {
324 RDEBUG("%s", fr_strerror());
329 if (radius_request(¤t, vpt.tmpl_request) < 0) return -2;
331 vps = radius_list(current, vpt.tmpl_list);
336 RIDEBUG("Attributes matching \"%s\"", fmt);
337 vp = fr_cursor_init(&cursor, vps);
340 vp = fr_cursor_next_by_da(&cursor, vpt.tmpl_da, TAG_ANY);
343 DICT_ATTR *dac = NULL;
346 vp_prints_value(buffer, sizeof(buffer), vp, '\'');
349 if (vp->da->flags.has_tag) {
350 RIDEBUG2("%s:%s:%i %s %s",
351 fr_int2str(pair_lists, vpt.tmpl_list, "<INVALID>"),
354 fr_int2str(fr_tokens, vp->op, "<INVALID>"),
357 RIDEBUG2("%s:%s %s %s",
358 fr_int2str(pair_lists, vpt.tmpl_list, "<INVALID>"),
360 fr_int2str(fr_tokens, vp->op, "<INVALID>"),
365 if (!RDEBUG_ENABLED3) goto next_vp;
369 if (vp->da->vendor) {
370 dv = dict_vendorbyvalue(vp->da->vendor);
371 RDEBUG3("Vendor : %i (%s)", vp->da->vendor, dv ? dv->name : "unknown");
373 RDEBUG3("Type : %s", fr_int2str(dict_attr_types, vp->da->type, "<INVALID>"));
374 RDEBUG3("Length : %zu", vp->length);
378 dac = talloc_memdup(request, vp->da, sizeof(DICT_ATTR));
380 talloc_set_type(dac, DICT_ATTR);
386 vp = fr_cursor_next_by_da(&cursor, vpt.tmpl_da, TAG_ANY);
388 vp = fr_cursor_next(&cursor);
396 /** Prints the current module processing the request
399 static ssize_t xlat_module(UNUSED void *instance, REQUEST *request,
400 UNUSED char const *fmt, char *out, size_t outlen)
402 strlcpy(out, request->module, outlen);
408 /** Implements the Foreach-Variable-X
412 static ssize_t xlat_foreach(void *instance, REQUEST *request,
413 UNUSED char const *fmt, char *out, size_t outlen)
419 * See modcall, "FOREACH" for how this works.
421 pvp = (VALUE_PAIR **) request_data_reference(request, radius_get_vp, *(int*) instance);
427 len = vp_prints_value(out, outlen, *pvp, 0);
428 if (is_truncated(len, outlen)) {
429 RDEBUG("Insufficient buffer space to write foreach value");
437 /** Print data as string, if possible.
439 * If attribute "Foo" is defined as "octets" it will normally
440 * be printed as 0x0a0a0a. The xlat "%{string:Foo}" will instead
443 static ssize_t xlat_string(UNUSED void *instance, REQUEST *request,
444 char const *fmt, char *out, size_t outlen)
451 while (isspace((int) *fmt)) fmt++;
459 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) goto nothing;
461 ret = rad_vp2data(&p, vp);
466 switch (vp->da->type) {
468 len = fr_print_string((char const *) p, vp->length, out, outlen, '\0');
472 len = strlcpy(out, vp->vp_strvalue, outlen);
476 len = fr_print_string((char const *) p, ret, out, outlen, '\0');
483 /** xlat expand string attribute value
486 static ssize_t xlat_xlat(UNUSED void *instance, REQUEST *request,
487 char const *fmt, char *out, size_t outlen)
491 while (isspace((int) *fmt)) fmt++;
499 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) goto nothing;
501 return radius_xlat(out, outlen, request, vp->vp_strvalue, NULL, NULL);
504 /** Dynamically change the debugging level for the current request
508 static ssize_t xlat_debug(UNUSED void *instance, REQUEST *request,
509 char const *fmt, char *out, size_t outlen)
514 * Expand to previous (or current) level
516 snprintf(out, outlen, "%d", request->log.lvl & RAD_REQUEST_OPTION_DEBUG4);
519 * Assume we just want to get the current value and NOT set it to 0
526 request->log.lvl = RAD_REQUEST_OPTION_NONE;
527 request->log.func = NULL;
529 if (level > 4) level = 4;
531 request->log.lvl = level;
532 request->log.func = vradlog_request;
540 * Compare two xlat_t structs, based ONLY on the module name.
542 static int xlat_cmp(void const *one, void const *two)
544 xlat_t const *a = one;
545 xlat_t const *b = two;
547 if (a->length != b->length) {
548 return a->length - b->length;
551 return memcmp(a->name, b->name, a->length);
556 * find the appropriate registered xlat function.
558 static xlat_t *xlat_find(char const *name)
562 strlcpy(my_xlat.name, name, sizeof(my_xlat.name));
563 my_xlat.length = strlen(my_xlat.name);
565 return rbtree_finddata(xlat_root, &my_xlat);
569 /** Register an xlat function.
571 * @param[in] name xlat name.
572 * @param[in] func xlat function to be called.
573 * @param[in] escape function to sanitize any sub expansions passed to the xlat function.
574 * @param[in] instance of module that's registering the xlat function.
575 * @return 0 on success, -1 on failure
577 int xlat_register(char const *name, RAD_XLAT_FUNC func, RADIUS_ESCAPE_STRING escape, void *instance)
583 if (!name || !*name) {
584 DEBUG("xlat_register: Invalid xlat name");
589 * First time around, build up the tree...
591 * FIXME: This code should be hoisted out of this function,
592 * and into a global "initialization". But it isn't critical...
599 xlat_root = rbtree_create(NULL, xlat_cmp, free, RBTREE_FLAG_REPLACE);
601 DEBUG("xlat_register: Failed to create tree");
606 for (i = 0; xlat_foreach_names[i] != NULL; i++) {
607 xlat_register(xlat_foreach_names[i],
608 xlat_foreach, NULL, &xlat_inst[i]);
609 c = xlat_find(xlat_foreach_names[i]);
610 rad_assert(c != NULL);
615 #define XLAT_REGISTER(_x) xlat_register(STRINGIFY(_x), xlat_ ## _x, NULL, NULL); \
616 c = xlat_find(STRINGIFY(_x)); \
617 rad_assert(c != NULL); \
620 XLAT_REGISTER(integer);
621 XLAT_REGISTER(strlen);
622 XLAT_REGISTER(length);
625 XLAT_REGISTER(string);
627 XLAT_REGISTER(module);
628 XLAT_REGISTER(debug_attr);
630 xlat_register("debug", xlat_debug, NULL, &xlat_inst[0]);
631 c = xlat_find("debug");
632 rad_assert(c != NULL);
637 * If it already exists, replace the instance.
639 strlcpy(my_xlat.name, name, sizeof(my_xlat.name));
640 my_xlat.length = strlen(my_xlat.name);
641 c = rbtree_finddata(xlat_root, &my_xlat);
644 DEBUG("xlat_register: Cannot re-define internal xlat");
650 c->instance = instance;
655 * Doesn't exist. Create it.
657 c = rad_malloc(sizeof(*c));
658 memset(c, 0, sizeof(*c));
662 strlcpy(c->name, name, sizeof(c->name));
663 c->length = strlen(c->name);
664 c->instance = instance;
666 node = rbtree_insert_node(xlat_root, c);
675 /** Unregister an xlat function
677 * We can only have one function to call per name, so the passing of "func"
678 * here is extraneous.
680 * @param[in] name xlat to unregister.
681 * @param[in] func unused.
682 * @param[in] instance data.
684 void xlat_unregister(char const *name, UNUSED RAD_XLAT_FUNC func, void *instance)
691 strlcpy(my_xlat.name, name, sizeof(my_xlat.name));
692 my_xlat.length = strlen(my_xlat.name);
694 c = rbtree_finddata(xlat_root, &my_xlat);
697 if (c->instance != instance) return;
699 rbtree_deletebydata(xlat_root, c);
702 static int xlat_unregister_callback(void *instance, void *data)
704 xlat_t *c = (xlat_t *) data;
706 if (c->instance != instance) return 0; /* keep walking */
708 return 2; /* delete it */
711 void xlat_unregister_module(void *instance)
713 rbtree_walk(xlat_root, RBTREE_DELETE_ORDER, xlat_unregister_callback, instance);
717 /** Crappy temporary function to add attribute ref support to xlats
719 * This needs to die, and hopefully will die, when xlat functions accept
720 * xlat node structures.
722 * Provides either a pointer to a buffer which contains the value of the reference VALUE_PAIR
723 * in an architecture independent format. Or a pointer to the start of the fmt string.
725 * The pointer is only guaranteed to be valid between calls to xlat_fmt_to_ref,
726 * and so long as the source VALUE_PAIR is not freed.
728 * @param out where to write a pointer to the buffer to the data the xlat function needs to work on.
729 * @param request current request.
731 * @returns the length of the data or -1 on error.
733 ssize_t xlat_fmt_to_ref(uint8_t const **out, REQUEST *request, char const *fmt)
737 while (isspace((int) *fmt)) fmt++;
740 if ((radius_get_vp(&vp, request, fmt) < 0) || !vp) {
745 return rad_vp2data(out, vp);
748 *out = (uint8_t const *)fmt;
752 /** De-register all xlat functions, used mainly for debugging.
757 rbtree_free(xlat_root);
762 # define XLAT_DEBUG DEBUG3
764 # define XLAT_DEBUG(...)
767 static ssize_t xlat_tokenize_expansion(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
769 static ssize_t xlat_tokenize_literal(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
770 int brace, char const **error);
771 static size_t xlat_process(char **out, REQUEST *request, xlat_exp_t const * const head,
772 RADIUS_ESCAPE_STRING escape, void *escape_ctx);
774 static ssize_t xlat_tokenize_alternation(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
781 rad_assert(fmt[0] == '%');
782 rad_assert(fmt[1] == '{');
783 rad_assert(fmt[2] == '%');
784 rad_assert(fmt[3] == '{');
786 XLAT_DEBUG("ALTERNATE <-- %s", fmt);
788 node = talloc_zero(ctx, xlat_exp_t);
789 node->type = XLAT_ALTERNATE;
792 slen = xlat_tokenize_expansion(node, p, &node->child, error);
795 return slen - (p - fmt);
801 *error = "Expected ':' after first expansion";
808 *error = "Expected '-' after ':'";
814 * Allow the RHS to be empty as a special case.
818 * Hack up an empty string.
820 node->alternate = talloc_zero(node, xlat_exp_t);
821 node->alternate->type = XLAT_LITERAL;
822 node->alternate->fmt = talloc_typed_strdup(node->alternate, "");
826 slen = xlat_tokenize_literal(node, p, &node->alternate, true, error);
829 return slen - (p - fmt);
832 if (!node->alternate) {
834 *error = "Empty expansion is invalid";
844 static ssize_t xlat_tokenize_expansion(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
849 char const *attrname;
852 rad_assert(fmt[0] == '%');
853 rad_assert(fmt[1] == '{');
858 if ((fmt[2] == '%') && (fmt[3] == '{')) {
859 return xlat_tokenize_alternation(ctx, fmt, head, error);
862 XLAT_DEBUG("EXPANSION <-- %s", fmt);
863 node = talloc_zero(ctx, xlat_exp_t);
864 attrname = node->fmt = fmt + 2;
869 * Handle regex's specially.
871 if (isdigit((int) fmt[2]) && (fmt[3] == '}')) {
874 *error = "Invalid regex reference";
878 XLAT_DEBUG("REGEX <-- %s", fmt);
880 node->attr.tmpl_num = fmt[2] - '0'; /* ASCII */
882 node->type = XLAT_REGEX;
886 #endif /* HAVE_REGEX */
891 * %{Tunnel-Password:1}
892 * %{Tunnel-Password:1[#]}
893 * %{request:Attr-Name}
894 * %{request:Tunnel-Password:1}
895 * %{request:Tunnel-Password:1[#]}
899 for (p = fmt + 2; *p != '\0'; p++) {
900 if (*p == ':') break;
902 if (isspace((int) *p)) break;
904 if (*p == '[') break;
906 if (*p == '}') break;
909 if (*p != ':') p = NULL;
912 * Might be a module name reference.
920 node->xlat = xlat_find(node->fmt);
922 node->type = XLAT_MODULE;
924 XLAT_DEBUG("MOD <-- %s ... %s", node->fmt, p + 1);
926 slen = xlat_tokenize_literal(node, p + 1, &node->child, true, error);
929 return slen - (p - fmt);
934 rad_assert(node->next == NULL);
939 * Modules can have '}' in their RHS, so we
940 * didn't check for that until now.
942 * As of now, node->fmt MUST be a reference to an
943 * attribute, however complicated. So it MUST have a closing brace.
945 brace = strchr(p + 1, '}');
946 if (!brace) goto no_brace;
952 * %{Tunnel-Password:1}
953 * %{request:Tunnel-Password:1}
955 * <sigh> The syntax is fairly poor.
957 XLAT_DEBUG("Looking for list in '%s'", attrname);
960 * Not a module. Has to be an attribute
963 * As of v3, we've removed %{request: ..>} as
964 * internally registered xlats.
967 node->attr.tmpl_request = radius_request_name(&attrname, REQUEST_CURRENT);
968 rad_assert(node->attr.tmpl_request != REQUEST_UNKNOWN);
970 node->attr.tmpl_list = radius_list_name(&attrname, PAIR_LIST_REQUEST);
971 if (node->attr.tmpl_list == PAIR_LIST_UNKNOWN) {
973 *error = "Unknown module";
978 * Check for a trailing tag.
980 p = strchr(attrname, ':');
984 brace = strchr(attrname, '}');
988 *error = "No matching closing brace";
989 return -1; /* second character of format string */
993 node->attr.tmpl_request = REQUEST_CURRENT;
994 node->attr.tmpl_list = PAIR_LIST_REQUEST;
999 XLAT_DEBUG("Looking for attribute name in %s", attrname);
1002 * Allow for an array reference. They come AFTER the
1003 * tag, if the tag exists. Otherwise, they come after
1004 * the attribute name.
1007 q = strchr(p + 1, '[');
1009 q = strchr(attrname, '[');
1011 if (q) *(q++) = '\0';
1015 *error = "Empty expression is invalid";
1016 return -(attrname - fmt);
1020 * It's either an attribute name, or a Tunnel-Password:TAG
1021 * with the ':' already set to NULL.
1023 node->attr.tmpl_da = dict_attrbyname(attrname);
1024 if (!node->attr.tmpl_da) {
1026 * Foreach. Maybe other stuff, too.
1028 node->xlat = xlat_find(attrname);
1030 node->type = XLAT_VIRTUAL;
1031 node->fmt = attrname;
1033 XLAT_DEBUG("VIRTUAL <-- %s", node->fmt);
1035 rad_assert(node->next == NULL);
1041 *error = "Unknown attribute";
1042 return -(attrname - fmt);
1052 if (!node->attr.tmpl_da->flags.has_tag) {
1054 *error = "Attribute cannot have a tag";
1058 tag = strtoul(p + 1, &end, 10);
1061 if (tag == ULONG_MAX) {
1063 *error = "Invalid tag value";
1067 node->attr.tmpl_tag = tag;
1072 *error = "Unexpected text after tag";
1077 node->attr.tmpl_tag = TAG_ANY;
1082 * Check for array reference
1090 node->attr.tmpl_num = NUM_COUNT;
1093 } else if (*p == '*') {
1094 node->attr.tmpl_num = NUM_ALL;
1097 } else if (isdigit((int) *p)) {
1098 num = strtoul(p, &end, 10);
1101 *error = "Invalid array index";
1105 node->attr.tmpl_num = num;
1109 *error = "Invalid array index";
1115 *error = "Expected ']'";
1122 *error = "Unexpected text after array reference";
1126 node->attr.tmpl_num = NUM_ANY;
1129 rad_assert(!p || (p == brace));
1131 node->type = XLAT_ATTRIBUTE;
1135 rad_assert(node->next == NULL);
1140 static ssize_t xlat_tokenize_literal(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
1141 int brace, char const **error)
1146 if (!*fmt) return 0;
1148 XLAT_DEBUG("LITERAL <-- %s", fmt);
1150 node = talloc_zero(ctx, xlat_exp_t);
1153 node->type = XLAT_LITERAL;
1161 *error = "Invalid escape at end of string";
1169 * Process the expansion.
1171 if ((p[0] == '%') && (p[1] == '{')) {
1174 XLAT_DEBUG("LITERAL <-- %s", node->fmt);
1176 slen = xlat_tokenize_expansion(node, p, &node->next, error);
1179 return slen - (p - fmt);
1181 *p = '\0'; /* end the literal */
1184 rad_assert(node->next != NULL);
1187 * Short-circuit the recursive call.
1188 * This saves another function call and
1189 * memory allocation.
1194 * "foo %{User-Name} bar"
1196 * EXPANSION User-Name
1199 slen = xlat_tokenize_literal(node->next, p, &(node->next->next), brace, error);
1200 rad_assert(slen != 0);
1203 return slen - (p - fmt);
1207 break; /* stop processing the string */
1211 * Check for valid single-character expansions.
1217 if (!p[1] || !strchr("%dlmtDGHISTYv", p[1])) {
1219 *error = "Invalid variable expansion";
1224 next = talloc_zero(node, xlat_exp_t);
1228 next->fmt = talloc_typed_strdup(next, "%");
1230 XLAT_DEBUG("LITERAL <-- %s", next->fmt);
1231 next->type = XLAT_LITERAL;
1236 XLAT_DEBUG("PERCENT <-- %c", *next->fmt);
1237 next->type = XLAT_PERCENT;
1249 slen = xlat_tokenize_literal(node->next, p, &(node->next->next), brace, error);
1250 rad_assert(slen != 0);
1253 return slen - (p - fmt);
1257 break; /* stop processing the string */
1261 * If required, eat the brace.
1263 if (brace && (*p == '}')) {
1274 * Squash zero-width literals
1276 if (node->len > 0) {
1279 *head = talloc_steal(ctx, node->next);
1287 static char const xlat_tabs[] = " ";
1289 static void xlat_tokenize_debug(xlat_exp_t const *node, int lvl)
1291 rad_assert(node != NULL);
1293 if (lvl >= (int) sizeof(xlat_tabs)) lvl = sizeof(xlat_tabs);
1296 switch (node->type) {
1298 DEBUG("%.*sliteral --> %s", lvl, xlat_tabs, node->fmt);
1302 DEBUG("%.*spercent --> %c", lvl, xlat_tabs, node->fmt[0]);
1305 case XLAT_ATTRIBUTE:
1306 rad_assert(node->attr.tmpl_da != NULL);
1307 DEBUG("%.*sattribute --> %s", lvl, xlat_tabs, node->attr.tmpl_da->name);
1308 rad_assert(node->child == NULL);
1309 if ((node->attr.tmpl_tag != TAG_ANY) || (node->attr.tmpl_num != NUM_ANY)) {
1310 DEBUG("%.*s{", lvl, xlat_tabs);
1312 DEBUG("%.*sref %d", lvl + 1, xlat_tabs, node->attr.tmpl_request);
1313 DEBUG("%.*slist %d", lvl + 1, xlat_tabs, node->attr.tmpl_list);
1315 if (node->attr.tmpl_tag != TAG_ANY) {
1316 DEBUG("%.*stag %d", lvl + 1, xlat_tabs, node->attr.tmpl_tag);
1318 if (node->attr.tmpl_num != NUM_ANY) {
1319 if (node->attr.tmpl_num == NUM_COUNT) {
1320 DEBUG("%.*s[#]", lvl + 1, xlat_tabs);
1321 } else if (node->attr.tmpl_num == NUM_ALL) {
1322 DEBUG("%.*s[*]", lvl + 1, xlat_tabs);
1324 DEBUG("%.*s[%d]", lvl + 1, xlat_tabs, node->attr.tmpl_num);
1328 DEBUG("%.*s}", lvl, xlat_tabs);
1333 rad_assert(node->fmt != NULL);
1334 DEBUG("%.*svirtual --> %s", lvl, xlat_tabs, node->fmt);
1338 rad_assert(node->xlat != NULL);
1339 DEBUG("%.*sxlat --> %s", lvl, xlat_tabs, node->xlat->name);
1341 DEBUG("%.*s{", lvl, xlat_tabs);
1342 xlat_tokenize_debug(node->child, lvl + 1);
1343 DEBUG("%.*s}", lvl, xlat_tabs);
1349 DEBUG("%.*sregex-var --> %d", lvl, xlat_tabs, node->attr.tmpl_num);
1353 case XLAT_ALTERNATE:
1354 DEBUG("%.*sif {", lvl, xlat_tabs);
1355 xlat_tokenize_debug(node->child, lvl + 1);
1356 DEBUG("%.*s}", lvl, xlat_tabs);
1357 DEBUG("%.*selse {", lvl, xlat_tabs);
1358 xlat_tokenize_debug(node->alternate, lvl + 1);
1359 DEBUG("%.*s}", lvl, xlat_tabs);
1366 size_t xlat_sprint(char *buffer, size_t bufsize, xlat_exp_t const *node)
1377 end = buffer + bufsize;
1380 switch (node->type) {
1382 strlcpy(p, node->fmt, end - p);
1388 p[1] = node->fmt[0];
1392 case XLAT_ATTRIBUTE:
1396 if (node->attr.tmpl_request != REQUEST_CURRENT) {
1397 strlcpy(p, fr_int2str(request_refs, node->attr.tmpl_request, "??"), end - p);
1402 if ((node->attr.tmpl_request != REQUEST_CURRENT) ||
1403 (node->attr.tmpl_list != PAIR_LIST_REQUEST)) {
1404 strlcpy(p, fr_int2str(pair_lists, node->attr.tmpl_list, "??"), end - p);
1409 strlcpy(p, node->attr.tmpl_da->name, end - p);
1412 if (node->attr.tmpl_tag != TAG_ANY) {
1414 snprintf(p, end - p, "%u", node->attr.tmpl_tag);
1418 if (node->attr.tmpl_num != NUM_ANY) {
1420 switch (node->attr.tmpl_num) {
1430 snprintf(p, end - p, "%i", node->attr.tmpl_num);
1439 snprintf(p, end - p, "%%{%i}", node->attr.tmpl_num);
1446 strlcpy(p, node->fmt, end - p);
1454 strlcpy(p, node->xlat->name, end - p);
1457 rad_assert(node->child != NULL);
1458 len = xlat_sprint(p, end - p, node->child);
1463 case XLAT_ALTERNATE:
1467 len = xlat_sprint(p, end - p, node->child);
1473 len = xlat_sprint(p, end - p, node->alternate);
1481 if (p == end) break;
1491 ssize_t xlat_tokenize(TALLOC_CTX *ctx, char *fmt, xlat_exp_t **head,
1494 return xlat_tokenize_literal(ctx, fmt, head, false, error);
1498 /** Tokenize an xlat expansion
1500 * @param[in] request the input request. Memory will be attached here.
1501 * @param[in] fmt the format string to expand
1502 * @param[out] head the head of the xlat list / tree structure.
1504 static ssize_t xlat_tokenize_request(REQUEST *request, char const *fmt, xlat_exp_t **head)
1513 * Copy the original format string to a buffer so that
1514 * the later functions can mangle it in-place, which is
1517 tokens = talloc_typed_strdup(request, fmt);
1518 if (!tokens) return -1;
1520 slen = xlat_tokenize_literal(request, tokens, head, false, &error);
1523 * Zero length expansion, return a zero length node.
1526 *head = talloc_zero(request, xlat_exp_t);
1530 * Output something like:
1533 * " ^ error was here"
1536 talloc_free(tokens);
1537 rad_assert(error != NULL);
1539 REMARKER(fmt, -slen, error);
1543 if (*head && (debug_flag > 2)) {
1545 DEBUG("Parsed xlat tree:");
1546 xlat_tokenize_debug(*head, 0);
1550 * All of the nodes point to offsets in the "tokens"
1551 * string. Let's ensure that free'ing head will free
1554 (void) talloc_steal(*head, tokens);
1560 static char *xlat_getvp(TALLOC_CTX *ctx, REQUEST *request, pair_lists_t list, DICT_ATTR const *da,
1561 int8_t tag, int num, bool return_null)
1563 VALUE_PAIR *vp, *vps = NULL, *myvp = NULL;
1564 RADIUS_PACKET *packet = NULL;
1569 * Arg. Too much abstraction is annoying.
1573 if (return_null) return NULL;
1574 return vp_aprint_type(ctx, da->type);
1576 case PAIR_LIST_CONTROL:
1577 vps = request->config_items;
1580 case PAIR_LIST_REQUEST:
1581 packet = request->packet;
1582 if (packet) vps = packet->vps;
1585 case PAIR_LIST_REPLY:
1586 packet = request->reply;
1587 if (packet) vps = packet->vps;
1591 case PAIR_LIST_PROXY_REQUEST:
1592 packet = request->proxy;
1593 if (packet) vps = packet->vps;
1596 case PAIR_LIST_PROXY_REPLY:
1597 packet = request->proxy_reply;
1598 if (packet) vps = packet->vps;
1605 if (request->coa) packet = request->coa->packet;
1606 if (packet) vps = packet->vps;
1609 case PAIR_LIST_COA_REPLY:
1610 case PAIR_LIST_DM_REPLY:
1611 if (request->coa) packet = request->coa->reply;
1612 if (packet) vps = packet->vps;
1619 * Now we have the list, check to see if we have an attribute in
1620 * the request, if we do, it takes precedence over the virtual
1623 * This allows users to manipulate virtual attributes as if they
1626 vp = pairfind(vps, da->attr, da->vendor, tag);
1627 if (vp) goto do_print;
1630 * We didn't find the VP in a list. It MIGHT be a
1631 * virtual one, in which case we do lots more checks
1632 * below. However, if we're looking for a normal
1633 * attribute, it must exist, and therefore not finding it
1634 * means we return NULL.
1636 if (!da->flags.virtual) return NULL;
1639 * Some non-packet expansions
1643 break; /* ignore them */
1645 case PW_CLIENT_SHORTNAME:
1646 if (num == NUM_COUNT) goto count;
1647 if (request->client && request->client->shortname) {
1648 return talloc_typed_strdup(ctx, request->client->shortname);
1650 return talloc_typed_strdup(ctx, "<UNKNOWN-CLIENT>");
1652 case PW_REQUEST_PROCESSING_STAGE:
1653 if (num == NUM_COUNT) goto count;
1654 if (request->component) {
1655 return talloc_typed_strdup(ctx, request->component);
1657 return talloc_typed_strdup(ctx, "server_core");
1659 case PW_VIRTUAL_SERVER:
1660 if (num == NUM_COUNT) goto count;
1661 if (!request->server) return NULL;
1662 return talloc_typed_strdup(ctx, request->server);
1664 case PW_MODULE_RETURN_CODE:
1665 if (num == NUM_COUNT) goto count;
1666 if (!request->rcode) return NULL;
1667 return talloc_typed_strdup(ctx, fr_int2str(modreturn_table, request->rcode, ""));
1671 * All of the attributes must now refer to a packet.
1672 * If there's no packet, we can't print any attribute
1676 if (return_null) return NULL;
1677 return vp_aprint_type(ctx, da->type);
1685 case PW_PACKET_TYPE:
1686 dv = dict_valbyattr(PW_PACKET_TYPE, 0, packet->code);
1687 if (dv) return talloc_typed_strdup(ctx, dv->name);
1688 return talloc_typed_asprintf(ctx, "%d", packet->code);
1690 case PW_RESPONSE_PACKET_TYPE:
1695 if (request->proxy_reply && (!request->reply || !request->reply->code)) {
1696 code = request->proxy_reply->code;
1699 if (request->reply) {
1700 code = request->reply->code;
1703 return talloc_typed_strdup(ctx, fr_packet_codes[code]);
1707 * Virtual attributes which require a temporary VALUE_PAIR
1708 * to be allocated. We can't use stack allocated memory
1709 * because of the talloc checks sprinkled throughout the
1710 * various VP functions.
1712 case PW_PACKET_AUTHENTICATION_VECTOR:
1713 myvp = pairalloc(ctx, da);
1714 pairmemcpy(myvp, packet->vector, sizeof(packet->vector));
1718 case PW_CLIENT_IP_ADDRESS:
1719 case PW_PACKET_SRC_IP_ADDRESS:
1720 if (packet->src_ipaddr.af == AF_INET) {
1721 myvp = pairalloc(ctx, da);
1722 myvp->vp_ipaddr = packet->src_ipaddr.ipaddr.ip4addr.s_addr;
1727 case PW_PACKET_DST_IP_ADDRESS:
1728 if (packet->dst_ipaddr.af == AF_INET) {
1729 myvp = pairalloc(ctx, da);
1730 myvp->vp_ipaddr = packet->dst_ipaddr.ipaddr.ip4addr.s_addr;
1735 case PW_PACKET_SRC_IPV6_ADDRESS:
1736 if (packet->src_ipaddr.af == AF_INET6) {
1737 myvp = pairalloc(ctx, da);
1738 memcpy(&myvp->vp_ipv6addr,
1739 &packet->src_ipaddr.ipaddr.ip6addr,
1740 sizeof(packet->src_ipaddr.ipaddr.ip6addr));
1745 case PW_PACKET_DST_IPV6_ADDRESS:
1746 if (packet->dst_ipaddr.af == AF_INET6) {
1747 myvp = pairalloc(ctx, da);
1748 memcpy(&myvp->vp_ipv6addr,
1749 &packet->dst_ipaddr.ipaddr.ip6addr,
1750 sizeof(packet->dst_ipaddr.ipaddr.ip6addr));
1755 case PW_PACKET_SRC_PORT:
1756 myvp = pairalloc(ctx, da);
1757 myvp->vp_integer = packet->src_port;
1761 case PW_PACKET_DST_PORT:
1762 myvp = pairalloc(ctx, da);
1763 myvp->vp_integer = packet->dst_port;
1769 * Fake various operations for virtual attributes.
1772 if (num != NUM_ANY) switch (num) {
1774 * [n] is NULL (we only have [0])
1779 * [*] means only one.
1785 * [#] means 1 (as there's only one)
1789 ret = talloc_strdup(ctx, "1");
1793 * [0] is fine (get the first instance)
1803 * We want the N'th VP.
1805 if (num != NUM_ANY) {
1811 * Return a count of the VPs.
1814 fr_cursor_init(&cursor, &vp);
1815 while (fr_cursor_next_by_da(&cursor, da, tag) != NULL) {
1818 return talloc_typed_asprintf(ctx, "%d", count);
1821 * Ugly, but working.
1827 (void) fr_cursor_init(&cursor, &vp);
1828 vp = fr_cursor_next_by_da(&cursor, da, tag);
1829 if (!vp) return NULL;
1831 p = vp_aprints_value(ctx, vp, '"');
1832 if (!p) return NULL;
1833 while ((vp = fr_cursor_next_by_da(&cursor, da, tag)) != NULL) {
1834 q = vp_aprints_value(ctx, vp, '"');
1835 if (!q) return NULL;
1836 p = talloc_strdup_append(p, ",");
1837 p = talloc_strdup_append(p, q);
1844 fr_cursor_init(&cursor, &vp);
1845 while ((vp = fr_cursor_next_by_da(&cursor, da, tag)) != NULL) {
1846 if (count++ == num) break;
1853 if (return_null) return NULL;
1854 return vp_aprint_type(ctx, da->type);
1858 ret = vp_aprints_value(ctx, vp, '"');
1866 static const char xlat_spaces[] = " ";
1869 static char *xlat_aprint(TALLOC_CTX *ctx, REQUEST *request, xlat_exp_t const * const node,
1870 RADIUS_ESCAPE_STRING escape, void *escape_ctx, int lvl)
1873 char *str = NULL, *child;
1878 XLAT_DEBUG("%.*sxlat aprint %d", lvl, xlat_spaces, node->type);
1880 switch (node->type) {
1882 * Don't escape this.
1885 XLAT_DEBUG("xlat_aprint LITERAL");
1886 return talloc_typed_strdup(ctx, node->fmt);
1889 * Do a one-character expansion.
1894 size_t freespace = 256;
1898 XLAT_DEBUG("xlat_aprint PERCENT");
1900 str = talloc_array(ctx, char, freespace); /* @todo do better allocation */
1903 when = request->timestamp;
1904 if (request->packet) {
1905 when = request->packet->timestamp.tv_sec;
1914 case 'd': /* request day */
1915 (void) localtime_r(&when, &ts);
1916 strftime(str, freespace, "%d", &ts);
1919 case 'l': /* request timestamp */
1920 snprintf(str, freespace, "%lu",
1921 (unsigned long) when);
1924 case 'm': /* request month */
1925 (void) localtime_r(&when, &ts);
1926 strftime(str, freespace, "%m", &ts);
1929 case 'n': /* Request Number*/
1930 snprintf(str, freespace, "%u", request->number);
1933 case 't': /* request timestamp */
1934 CTIME_R(&when, str, freespace);
1935 nl = strchr(str, '\n');
1939 case 'D': /* request date */
1940 (void) localtime_r(&when, &ts);
1941 strftime(str, freespace, "%Y%m%d", &ts);
1944 case 'G': /* request minute */
1945 (void) localtime_r(&when, &ts);
1946 strftime(str, freespace, "%M", &ts);
1949 case 'H': /* request hour */
1950 (void) localtime_r(&when, &ts);
1951 strftime(str, freespace, "%H", &ts);
1954 case 'I': /* Request ID */
1955 if (request->packet) {
1956 snprintf(str, freespace, "%i", request->packet->id);
1960 case 'S': /* request timestamp in SQL format*/
1961 (void) localtime_r(&when, &ts);
1962 strftime(str, freespace, "%Y-%m-%d %H:%M:%S", &ts);
1965 case 'T': /* request timestamp */
1966 (void) localtime_r(&when, &ts);
1967 strftime(str, freespace, "%Y-%m-%d-%H.%M.%S.000000", &ts);
1970 case 'Y': /* request year */
1971 (void) localtime_r(&when, &ts);
1972 strftime(str, freespace, "%Y", &ts);
1975 case 'v': /* Version of code */
1976 snprintf(str, freespace, "%s", radiusd_short_version);
1986 case XLAT_ATTRIBUTE:
1987 XLAT_DEBUG("xlat_aprint ATTRIBUTE");
1989 if (radius_request(&ref, node->attr.tmpl_request) < 0) {
1994 * Some attributes are virtual <sigh>
1996 str = xlat_getvp(ctx, ref, node->attr.tmpl_list, node->attr.tmpl_da, node->attr.tmpl_tag, node->attr.tmpl_num, true);
1998 XLAT_DEBUG("EXPAND attr %s", node->attr.tmpl_da->name);
1999 XLAT_DEBUG(" ---> %s", str);
2004 XLAT_DEBUG("xlat_aprint VIRTUAL");
2005 str = talloc_array(ctx, char, 2048); /* FIXME: have the module call talloc_typed_asprintf */
2006 rcode = node->xlat->func(node->xlat->instance, request, NULL, str, 2048);
2014 XLAT_DEBUG("xlat_aprint MODULE");
2015 if (xlat_process(&child, request, node->child, node->xlat->escape, node->xlat->instance) == 0) {
2019 XLAT_DEBUG("%.*sEXPAND mod %s %s", lvl, xlat_spaces, node->fmt, node->child->fmt);
2020 XLAT_DEBUG("%.*s ---> %s", lvl, xlat_spaces, child);
2025 * The OUTPUT of xlat is a printable string. The INPUT might not be...
2027 * This is really the reverse of fr_print_string().
2031 if (*p == '\\') switch (p[1]) {
2052 str = talloc_array(ctx, char, 2048); /* FIXME: have the module call talloc_typed_asprintf */
2053 *str = '\0'; /* Be sure the string is NULL terminated, we now only free on error */
2055 rcode = node->xlat->func(node->xlat->instance, request, child, str, 2048);
2065 XLAT_DEBUG("xlat_aprint REGEX");
2066 child = request_data_reference(request, request,
2067 REQUEST_DATA_REGEX | node->attr.tmpl_num);
2068 if (!child) return NULL;
2070 str = talloc_typed_strdup(ctx, child);
2074 case XLAT_ALTERNATE:
2075 XLAT_DEBUG("xlat_aprint ALTERNATE");
2076 rad_assert(node->child != NULL);
2077 rad_assert(node->alternate != NULL);
2079 str = xlat_aprint(ctx, request, node->child, escape, escape_ctx, lvl);
2082 str = xlat_aprint(ctx, request, node->alternate, escape, escape_ctx, lvl);
2088 * Escape the non-literals we found above.
2090 if (str && escape) {
2093 escaped = talloc_array(ctx, char, 2048); /* FIXME: do something intelligent */
2094 escape(request, escaped, 2038, str, escape_ctx);
2103 static size_t xlat_process(char **out, REQUEST *request, xlat_exp_t const * const head,
2104 RADIUS_ESCAPE_STRING escape, void *escape_ctx)
2108 char **array, *answer;
2109 xlat_exp_t const *node;
2114 * There are no nodes to process, so the result is a zero
2118 *out = talloc_zero_array(request, char, 1);
2123 * Hack for speed. If it's one expansion, just allocate
2124 * that and return, instead of allocating an intermediary
2129 * Pass the MAIN escape function. Recursive
2130 * calls will call node-specific escape
2133 answer = xlat_aprint(request, request, head, escape, escape_ctx, 0);
2135 *out = talloc_zero_array(request, char, 1);
2139 return strlen(answer);
2142 list = 0; /* FIXME: calculate this once */
2143 for (node = head; node != NULL; node = node->next) {
2147 array = talloc_array(request, char *, list);
2148 if (!array) return -1;
2150 for (node = head, i = 0; node != NULL; node = node->next, i++) {
2151 array[i] = xlat_aprint(array, request, node, escape, escape_ctx, 0); /* may be NULL */
2155 for (i = 0; i < list; i++) {
2156 if (array[i]) total += strlen(array[i]); /* FIXME: calculate strlen once */
2161 *out = talloc_zero_array(request, char, 1);
2165 answer = talloc_array(request, char, total + 1);
2168 for (i = 0; i < list; i++) {
2172 len = strlen(array[i]);
2173 memcpy(answer + total, array[i], len);
2177 answer[total] = '\0';
2178 talloc_free(array); /* and child entries */
2185 /** Replace %whatever in a string.
2187 * See 'doc/variables.txt' for more information.
2189 * @param[out] out Where to write pointer to output buffer.
2190 * @param[in] outlen Size of out.
2191 * @param[in] request current request.
2192 * @param[in] node the xlat structure to expand
2193 * @param[in] escape function to escape final value e.g. SQL quoting.
2194 * @param[in] escape_ctx pointer to pass to escape function.
2195 * @return length of string written @bug should really have -1 for failure
2197 static ssize_t xlat_expand_struct(char **out, size_t outlen, REQUEST *request, xlat_exp_t const *node,
2198 RADIUS_ESCAPE_STRING escape, void *escape_ctx)
2203 rad_assert(node != NULL);
2205 len = xlat_process(&buff, request, node, escape, escape_ctx);
2206 if ((len < 0) || !buff) {
2207 rad_assert(buff == NULL);
2208 if (*out) *out[0] = '\0';
2215 strlcpy(*out, buff, outlen);
2219 return strlen(*out);
2222 static ssize_t xlat_expand(char **out, size_t outlen, REQUEST *request, char const *fmt,
2223 RADIUS_ESCAPE_STRING escape, void *escape_ctx) CC_HINT(nonnull (1, 3, 4));
2225 /** Replace %whatever in a string.
2227 * See 'doc/variables.txt' for more information.
2229 * @param[out] out Where to write pointer to output buffer.
2230 * @param[in] outlen Size of out.
2231 * @param[in] request current request.
2232 * @param[in] fmt string to expand.
2233 * @param[in] escape function to escape final value e.g. SQL quoting.
2234 * @param[in] escape_ctx pointer to pass to escape function.
2235 * @return length of string written @bug should really have -1 for failure
2237 static ssize_t CC_HINT(nonnull (1, 3, 4)) xlat_expand(char **out, size_t outlen, REQUEST *request, char const *fmt,
2238 RADIUS_ESCAPE_STRING escape, void *escape_ctx)
2244 * Give better errors than the old code.
2246 len = xlat_tokenize_request(request, fmt, &node);
2251 *out = talloc_zero_array(request, char, 1);
2257 if (*out) *out[0] = '\0';
2261 len = xlat_expand_struct(out, outlen, request, node, escape, escape_ctx);
2264 RDEBUG2("EXPAND %s", fmt);
2265 RDEBUG2(" --> %s", *out);
2271 * Try to convert an xlat to a tmpl for efficiency
2273 value_pair_tmpl_t *radius_xlat2tmpl(TALLOC_CTX *ctx, xlat_exp_t *node)
2275 value_pair_tmpl_t *vpt;
2277 if (node->next || (node->type != XLAT_ATTRIBUTE)) return NULL;
2280 * @todo it should be possible to emulate the concat and count operations in the
2283 if ((node->attr.tmpl_num == NUM_COUNT) || (node->attr.tmpl_num == NUM_ALL)) return NULL;
2285 vpt = tmpl_alloc(ctx, TMPL_TYPE_ATTR, node->fmt, -1);
2286 if (!vpt) return NULL;
2287 vpt->tmpl_request = node->attr.tmpl_request;
2288 vpt->tmpl_list = node->attr.tmpl_list;
2289 vpt->tmpl_da = node->attr.tmpl_da;
2290 vpt->tmpl_num = node->attr.tmpl_num;
2291 vpt->tmpl_tag = node->attr.tmpl_tag;
2298 ssize_t radius_xlat(char *out, size_t outlen, REQUEST *request, char const *fmt, RADIUS_ESCAPE_STRING escape, void *ctx)
2300 return xlat_expand(&out, outlen, request, fmt, escape, ctx);
2303 ssize_t radius_axlat(char **out, REQUEST *request, char const *fmt, RADIUS_ESCAPE_STRING escape, void *ctx)
2305 return xlat_expand(out, 0, request, fmt, escape, ctx);
2308 ssize_t radius_axlat_struct(char **out, REQUEST *request, xlat_exp_t const *xlat, RADIUS_ESCAPE_STRING escape, void *ctx)
2310 return xlat_expand_struct(out, 0, request, xlat, escape, ctx);