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41 #include <tr_cfgwatch.h>
43 #include <tr_config.h>
44 #include <tr_gss_names.h>
46 #include <tr_filter.h>
47 #include <trust_router/tr_constraint.h>
50 #include <trust_router/trp.h>
52 #if JANSSON_VERSION_HEX < 0x020500
53 #include "jansson_iterators.h"
56 static TR_CONSTRAINT *tr_cfg_parse_one_constraint(TALLOC_CTX *mem_ctx, char *ctype, json_t *jc, TR_CFG_RC *rc)
58 TR_CONSTRAINT *cons=NULL;
61 if ((!ctype) || (!jc) || (!rc) ||
62 (!json_is_array(jc)) ||
63 (0 >= json_array_size(jc)) ||
64 (TR_MAX_CONST_MATCHES < json_array_size(jc)) ||
65 (!json_is_string(json_array_get(jc, 0)))) {
66 tr_err("tr_cfg_parse_one_constraint: config error.");
71 if (NULL==(cons=tr_constraint_new(mem_ctx))) {
72 tr_debug("tr_cfg_parse_one_constraint: Out of memory (cons).");
77 if (NULL==(cons->type=tr_new_name(ctype))) {
78 tr_err("tr_cfg_parse_one_constraint: Out of memory (type).");
80 tr_constraint_free(cons);
84 for (i=0; i < json_array_size(jc); i++) {
85 cons->matches[i]=tr_new_name(json_string_value(json_array_get(jc, i)));
86 if (cons->matches[i]==NULL) {
87 tr_err("tr_cfg_parse_one_constraint: Out of memory (match %d).", i+1);
89 tr_constraint_free(cons);
97 static TR_FILTER *tr_cfg_parse_one_filter(TALLOC_CTX *mem_ctx, json_t *jfilt, TR_FILTER_TYPE ftype, TR_CFG_RC *rc)
99 TALLOC_CTX *tmp_ctx = talloc_new(NULL);
100 TR_FILTER *filt = NULL;
101 TR_FLINE *fline = NULL;
102 json_t *jfaction = NULL;
103 json_t *jfline = NULL;
104 json_t *jfspecs = NULL;
105 json_t *this_jfspec = NULL;
106 json_t *jfield = NULL;
107 json_t *jmatch = NULL;
110 json_t *this_jmatch = NULL;
111 TR_NAME *name = NULL;
112 size_t i = 0, j = 0, k = 0;
116 if ((jfilt == NULL) || (rc == NULL)) {
117 tr_err("tr_cfg_parse_one_filter: null argument");
118 *rc = TR_CFG_BAD_PARAMS;
122 if (NULL == (filt = tr_filter_new(tmp_ctx))) {
123 tr_err("tr_cfg_parse_one_filter: Out of memory.");
127 tr_filter_set_type(filt, ftype);
129 /* For each entry in the filter... */
130 json_array_foreach(jfilt, i, jfline) {
131 if ((NULL == (jfaction = json_object_get(jfline, "action"))) ||
132 (!json_is_string(jfaction))) {
133 tr_debug("tr_cfg_parse_one_filter: Error parsing filter action.");
134 *rc = TR_CFG_NOPARSE;
138 if ((NULL == (jfspecs = json_object_get(jfline, "specs"))) ||
139 (!json_is_array(jfspecs)) ||
140 (0 == json_array_size(jfspecs))) {
141 tr_debug("tr_cfg_parse_one_filter: Error parsing filter specs.");
142 *rc = TR_CFG_NOPARSE;
146 if (TR_MAX_FILTER_SPECS < json_array_size(jfspecs)) {
147 tr_debug("tr_cfg_parse_one_filter: Filter has too many specs, maximimum of %d.", TR_MAX_FILTER_SPECS);
148 *rc = TR_CFG_NOPARSE;
152 fline = tr_fline_new(tmp_ctx);
154 tr_debug("tr_cfg_parse_one_filter: Out of memory allocating filter line %d.", i + 1);
159 if (!strcmp(json_string_value(jfaction), "accept")) {
160 fline->action = TR_FILTER_ACTION_ACCEPT;
161 } else if (!strcmp(json_string_value(jfaction), "reject")) {
162 fline->action = TR_FILTER_ACTION_REJECT;
164 tr_debug("tr_cfg_parse_one_filter: Error parsing filter action, unknown action' %s'.",
165 json_string_value(jfaction));
166 *rc = TR_CFG_NOPARSE;
170 if (NULL != (jrc = json_object_get(jfline, "realm_constraints"))) {
171 if (!json_is_array(jrc)) {
172 tr_err("tr_cfg_parse_one_filter: cannot parse realm_constraints, not an array.");
173 *rc = TR_CFG_NOPARSE;
175 } else if (json_array_size(jrc) > TR_MAX_CONST_MATCHES) {
176 tr_err("tr_cfg_parse_one_filter: realm_constraints has too many entries, maximum of %d.",
177 TR_MAX_CONST_MATCHES);
178 *rc = TR_CFG_NOPARSE;
180 } else if (json_array_size(jrc) > 0) {
181 /* ok we actually have entries to process */
182 if (NULL == (fline->realm_cons = tr_cfg_parse_one_constraint(fline, "realm", jrc, rc))) {
183 tr_debug("tr_cfg_parse_one_filter: Error parsing realm constraint");
184 *rc = TR_CFG_NOPARSE;
190 if (NULL != (jdc = json_object_get(jfline, "domain_constraints"))) {
191 if (!json_is_array(jdc)) {
192 tr_err("tr_cfg_parse_one_filter: cannot parse domain_constraints, not an array.");
193 *rc = TR_CFG_NOPARSE;
195 } else if (json_array_size(jdc) > TR_MAX_CONST_MATCHES) {
196 tr_err("tr_cfg_parse_one_filter: domain_constraints has too many entries, maximum of %d.",
197 TR_MAX_CONST_MATCHES);
198 *rc = TR_CFG_NOPARSE;
200 } else if (json_array_size(jdc) > 0) {
201 if (NULL == (fline->domain_cons = tr_cfg_parse_one_constraint(fline, "domain", jdc, rc))) {
202 tr_debug("tr_cfg_parse_one_filter: Error parsing domain constraint");
203 *rc = TR_CFG_NOPARSE;
209 /*For each filter spec within the filter line... */
210 json_array_foreach(jfspecs, j, this_jfspec) {
211 if ((NULL == (jfield = json_object_get(this_jfspec, "field"))) ||
212 (!json_is_string(jfield))) {
213 tr_debug("tr_cfg_parse_one_filter: Error parsing filter: missing field for filer spec %d, filter line %d.", i,
215 *rc = TR_CFG_NOPARSE;
219 /* check that we have a match attribute */
220 if (NULL == (jmatch = json_object_get(this_jfspec, "match"))) {
221 tr_debug("tr_cfg_parse_one_filter: Error parsing filter: missing match for filer spec %d, filter line %d.", i,
223 *rc = TR_CFG_NOPARSE;
227 /* check that match is a string or an array */
228 if ((!json_is_string(jmatch)) && (!json_is_array(jmatch))) {
230 "tr_cfg_parse_one_filter: Error parsing filter: match not a string or array for filter spec %d, filter line %d.",
232 *rc = TR_CFG_NOPARSE;
236 /* allocate the filter spec */
237 if (NULL == (fline->specs[j] = tr_fspec_new(fline))) {
238 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
243 /* fill in the field */
244 if (NULL == (fline->specs[j]->field = tr_new_name(json_string_value(jfield)))) {
245 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
250 /* fill in the matches */
251 if (json_is_string(jmatch)) {
252 if (NULL == (name = tr_new_name(json_string_value(jmatch)))) {
253 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
257 tr_fspec_add_match(fline->specs[j], name);
259 /* jmatch is an array (we checked earlier) */
260 json_array_foreach(jmatch, k, this_jmatch) {
261 if (NULL == (name = tr_new_name(json_string_value(this_jmatch)))) {
262 tr_debug("tr_cfg_parse_one_filter: Out of memory.");
266 tr_fspec_add_match(fline->specs[j], name);
269 if (!tr_filter_validate_spec_field(ftype, fline->specs[j])){
270 tr_debug("tr_cfg_parse_one_filter: Invalid filter field \"%.*s\" for %s filter, spec %d, filter %d.",
271 fline->specs[j]->field->len,
272 fline->specs[j]->field->buf,
273 tr_filter_type_to_string(filt->type),
280 if (NULL == tr_filter_add_line(filt, fline)) {
281 tr_debug("tr_cfg_parse_one_filter: Error adding line %d for %s filter",
282 i+1, tr_filter_type_to_string(filt->type));
288 /* check that the filter is valid */
289 if (!tr_filter_validate(filt)) {
292 *rc = TR_CFG_SUCCESS;
293 talloc_steal(mem_ctx, filt);
297 talloc_free(tmp_ctx);
298 if (*rc!=TR_CFG_SUCCESS)
303 TR_FILTER_SET *tr_cfg_parse_filters(TALLOC_CTX *mem_ctx, json_t *jfilts, TR_CFG_RC *rc)
305 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
307 const char *filt_label=NULL;
308 TR_FILTER *filt=NULL;
309 TR_FILTER_SET *filt_set=NULL;
310 TR_FILTER_TYPE filt_type=TR_FILTER_TYPE_UNKNOWN;
320 filt_set=tr_filter_set_new(tmp_ctx);
321 if (filt_set==NULL) {
322 tr_debug("tr_cfg_parse_filters: Unable to allocate filter set.");
327 json_object_foreach(jfilts, filt_label, jfilt) {
328 /* check that we got a filter */
330 tr_debug("tr_cfg_parse_filters: Definition for %s filter is missing.", filt_label);
331 *rc = TR_CFG_NOPARSE;
335 /* check that we recognize the filter type */
336 filt_type=tr_filter_type_from_string(filt_label);
337 if (filt_type==TR_FILTER_TYPE_UNKNOWN) {
338 tr_debug("tr_cfg_parse_filters: Unrecognized filter (%s) defined.", filt_label);
339 *rc = TR_CFG_NOPARSE;
343 /* finally, parse the filter */
344 tr_debug("tr_cfg_parse_filters: Found %s filter.", filt_label);
345 filt = tr_cfg_parse_one_filter(tmp_ctx, jfilt, filt_type, rc);
346 tr_filter_set_add(filt_set, filt);
347 if (*rc != TR_CFG_SUCCESS) {
348 tr_debug("tr_cfg_parse_filters: Error parsing %s filter.", filt_label);
349 *rc = TR_CFG_NOPARSE;
357 if (*rc==TR_CFG_SUCCESS)
358 talloc_steal(mem_ctx, filt_set);
359 else if (filt_set!=NULL) {
360 talloc_free(filt_set);
364 talloc_free(tmp_ctx);