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-rw-r--r--src/modules/rlm_perl/rlm_perl.c1191
1 files changed, 1191 insertions, 0 deletions
diff --git a/src/modules/rlm_perl/rlm_perl.c b/src/modules/rlm_perl/rlm_perl.c
new file mode 100644
index 0000000..0c58cc8
--- /dev/null
+++ b/src/modules/rlm_perl/rlm_perl.c
@@ -0,0 +1,1191 @@
+/*
+ * This program is is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/**
+ * $Id$
+ * @file rlm_perl.c
+ * @brief Translates requests between the server an a perl interpreter.
+ *
+ * @copyright 2002,2006 The FreeRADIUS server project
+ * @copyright 2002 Boian Jordanov <bjordanov@orbitel.bg>
+ */
+RCSID("$Id$")
+
+#include <freeradius-devel/radiusd.h>
+#include <freeradius-devel/modules.h>
+#include <freeradius-devel/rad_assert.h>
+
+#ifdef INADDR_ANY
+# undef INADDR_ANY
+#endif
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+#include <dlfcn.h>
+#include <semaphore.h>
+
+#ifdef __APPLE__
+extern char **environ;
+#endif
+
+/*
+ * Define a structure for our module configuration.
+ *
+ * These variables do not need to be in a structure, but it's
+ * a lot cleaner to do so, and a pointer to the structure can
+ * be used as the instance handle.
+ */
+typedef struct rlm_perl_t {
+ /* Name of the perl module */
+ char const *module;
+
+ /* Name of the functions for each module method */
+ char const *func_authorize;
+ char const *func_authenticate;
+ char const *func_accounting;
+ char const *func_start_accounting;
+ char const *func_stop_accounting;
+ char const *func_preacct;
+ char const *func_checksimul;
+ char const *func_detach;
+ char const *func_xlat;
+#ifdef WITH_PROXY
+ char const *func_pre_proxy;
+ char const *func_post_proxy;
+#endif
+ char const *func_post_auth;
+#ifdef WITH_COA
+ char const *func_recv_coa;
+ char const *func_send_coa;
+#endif
+ char const *xlat_name;
+ char const *perl_flags;
+ PerlInterpreter *perl;
+ bool perl_parsed;
+ pthread_key_t *thread_key;
+
+#ifdef USE_ITHREADS
+ pthread_mutex_t clone_mutex;
+#endif
+
+ HV *rad_perlconf_hv; //!< holds "config" items (perl %RAD_PERLCONF hash).
+
+} rlm_perl_t;
+/*
+ * A mapping of configuration file names to internal variables.
+ */
+#define RLM_PERL_CONF(_x) { "func_" STRINGIFY(_x), PW_TYPE_STRING, \
+ offsetof(rlm_perl_t,func_##_x), NULL, STRINGIFY(_x)}
+
+static const CONF_PARSER module_config[] = {
+ { "module", FR_CONF_OFFSET(PW_TYPE_FILE_INPUT | PW_TYPE_DEPRECATED, rlm_perl_t, module), NULL },
+ { "filename", FR_CONF_OFFSET(PW_TYPE_FILE_INPUT | PW_TYPE_REQUIRED, rlm_perl_t, module), NULL },
+
+ RLM_PERL_CONF(authorize),
+ RLM_PERL_CONF(authenticate),
+ RLM_PERL_CONF(post_auth),
+ RLM_PERL_CONF(accounting),
+ RLM_PERL_CONF(preacct),
+ RLM_PERL_CONF(checksimul),
+ RLM_PERL_CONF(detach),
+ RLM_PERL_CONF(xlat),
+
+#ifdef WITH_PROXY
+ RLM_PERL_CONF(pre_proxy),
+ RLM_PERL_CONF(post_proxy),
+#endif
+#ifdef WITH_COA
+ RLM_PERL_CONF(recv_coa),
+ RLM_PERL_CONF(send_coa),
+#endif
+ { "perl_flags", FR_CONF_OFFSET(PW_TYPE_STRING, rlm_perl_t, perl_flags), NULL },
+
+ { "func_start_accounting", FR_CONF_OFFSET(PW_TYPE_STRING, rlm_perl_t, func_start_accounting), NULL },
+
+ { "func_stop_accounting", FR_CONF_OFFSET(PW_TYPE_STRING, rlm_perl_t, func_stop_accounting), NULL },
+ CONF_PARSER_TERMINATOR
+};
+
+/*
+ * man perlembed
+ */
+EXTERN_C void boot_DynaLoader(pTHX_ CV* cv);
+
+static int perl_sys_init3_called = 0;
+
+#ifdef USE_ITHREADS
+# define dl_librefs "DynaLoader::dl_librefs"
+# define dl_modules "DynaLoader::dl_modules"
+static void rlm_perl_clear_handles(pTHX)
+{
+ AV *librefs = get_av(dl_librefs, false);
+ if (librefs) {
+ av_clear(librefs);
+ }
+}
+
+static void **rlm_perl_get_handles(pTHX)
+{
+ I32 i;
+ AV *librefs = get_av(dl_librefs, false);
+ AV *modules = get_av(dl_modules, false);
+ void **handles;
+
+ if (!librefs) return NULL;
+
+ if (!(AvFILL(librefs) >= 0)) {
+ return NULL;
+ }
+
+ handles = (void **)rad_malloc(sizeof(void *) * (AvFILL(librefs)+2));
+
+ for (i = 0; i <= AvFILL(librefs); i++) {
+ void *handle;
+ SV *handle_sv = *av_fetch(librefs, i, false);
+ if (!handle_sv) {
+ ERROR("Could not fetch $%s[%d]!", dl_librefs, (int)i);
+ continue;
+ }
+ handle = (void *)SvIV(handle_sv);
+
+ if (handle) handles[i] = handle;
+ }
+
+ av_clear(modules);
+ av_clear(librefs);
+
+ handles[i] = (void *)0;
+
+ return handles;
+}
+
+static void rlm_perl_close_handles(void **handles)
+{
+ int i;
+
+ if (!handles) {
+ return;
+ }
+
+ for (i = 0; handles[i]; i++) {
+ DEBUG("Close %p", handles[i]);
+ dlclose(handles[i]);
+ }
+
+ free(handles);
+}
+
+DIAG_OFF(shadow)
+static void rlm_perl_destruct(PerlInterpreter *perl)
+{
+ dTHXa(perl);
+
+ PERL_SET_CONTEXT(perl);
+
+ PL_perl_destruct_level = 2;
+
+ PL_origenviron = environ;
+
+
+ {
+ dTHXa(perl);
+ }
+ /*
+ * FIXME: This shouldn't happen
+ *
+ */
+ while (PL_scopestack_ix > 1) {
+ LEAVE;
+ }
+
+ perl_destruct(perl);
+ perl_free(perl);
+}
+DIAG_ON(shadow)
+
+static void rlm_destroy_perl(PerlInterpreter *perl)
+{
+ void **handles;
+
+ dTHXa(perl);
+ PERL_SET_CONTEXT(perl);
+
+ handles = rlm_perl_get_handles(aTHX);
+ if (handles) rlm_perl_close_handles(handles);
+ rlm_perl_destruct(perl);
+}
+
+/* Create Key */
+static void rlm_perl_make_key(pthread_key_t *key)
+{
+ pthread_key_create(key, (void (*)(void *))rlm_destroy_perl);
+}
+
+static PerlInterpreter *rlm_perl_clone(PerlInterpreter *perl, pthread_key_t *key)
+{
+ int ret;
+
+ PerlInterpreter *interp;
+ UV clone_flags = 0;
+
+ PERL_SET_CONTEXT(perl);
+
+ interp = pthread_getspecific(*key);
+ if (interp) return interp;
+
+ interp = perl_clone(perl, clone_flags);
+ {
+ dTHXa(interp);
+ }
+# if PERL_REVISION >= 5 && PERL_VERSION <8
+ call_pv("CLONE",0);
+# endif
+ ptr_table_free(PL_ptr_table);
+ PL_ptr_table = NULL;
+
+ PERL_SET_CONTEXT(aTHX);
+ rlm_perl_clear_handles(aTHX);
+
+ ret = pthread_setspecific(*key, interp);
+ if (ret != 0) {
+ DEBUG("rlm_perl: Failed associating interpretor with thread %s", fr_syserror(ret));
+
+ rlm_perl_destruct(interp);
+ return NULL;
+ }
+
+ return interp;
+}
+#endif
+
+/*
+ * This is wrapper for radlog
+ * Now users can call radiusd::radlog(level,msg) wich is the same
+ * as calling radlog from C code.
+ */
+static XS(XS_radiusd_radlog)
+{
+ dXSARGS;
+ if (items !=2)
+ croak("Usage: radiusd::radlog(level, message)");
+ {
+ int level;
+ char *msg;
+
+ level = (int) SvIV(ST(0));
+ msg = (char *) SvPV(ST(1), PL_na);
+
+ /*
+ * Because 'msg' is a 'char *', we don't want '%s', etc.
+ * in it to give us printf-style vulnerabilities.
+ */
+ radlog(level, "rlm_perl: %s", msg);
+ }
+ XSRETURN_NO;
+}
+
+/*
+ * This is a wraper for radius_axlat
+ * Now users are able to get data that is accessible only via xlat
+ * e.g. %{client:...}
+ * Call syntax is radiusd::xlat(string), string will be handled the
+ * same way it is described in EXPANSIONS section of man unlang
+ */
+static XS(XS_radiusd_xlat)
+{
+ dXSARGS;
+ char *in_str;
+ char *expanded;
+ ssize_t slen;
+ SV *rad_requestp_sv;
+ REQUEST *request;
+
+ if (items != 1) croak("Usage: radiusd::xlat(string)");
+
+ rad_requestp_sv = get_sv("RAD___REQUESTP", 0);
+ if (rad_requestp_sv == NULL) croak("Can not evalue xlat, RAD___REQUESTP is not set!");
+
+ request = INT2PTR(REQUEST *, SvIV(rad_requestp_sv));
+
+ in_str = (char *) SvPV(ST(0), PL_na);
+ expanded = NULL;
+ slen = radius_axlat(&expanded, request, in_str, NULL, NULL);
+
+ if (slen < 0) {
+ REDEBUG("Error parsing xlat '%s'", in_str);
+ XSRETURN_UNDEF;
+ }
+
+
+ XST_mPV(0, expanded);
+ talloc_free(expanded);
+ XSRETURN(1);
+}
+
+static void xs_init(pTHX)
+{
+ char const *file = __FILE__;
+
+ /* DynaLoader is a special case */
+ newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
+
+ newXS("radiusd::radlog",XS_radiusd_radlog, "rlm_perl");
+ newXS("radiusd::xlat",XS_radiusd_xlat, "rlm_perl");
+}
+
+/*
+ * The xlat function
+ */
+static ssize_t perl_xlat(void *instance, REQUEST *request, char const *fmt, char *out, size_t freespace)
+{
+
+ rlm_perl_t *inst = (rlm_perl_t *) instance;
+ char *tmp;
+ char const *p, *q;
+ int count;
+ size_t ret = 0;
+ STRLEN n_a;
+
+#ifdef USE_ITHREADS
+ PerlInterpreter *interp;
+
+ pthread_mutex_lock(&inst->clone_mutex);
+ interp = rlm_perl_clone(inst->perl, inst->thread_key);
+ {
+ dTHXa(interp);
+ PERL_SET_CONTEXT(interp);
+ }
+ pthread_mutex_unlock(&inst->clone_mutex);
+#else
+ PERL_SET_CONTEXT(inst->perl);
+#endif
+ {
+ dSP;
+ ENTER;SAVETMPS;
+
+ PUSHMARK(SP);
+
+ p = q = fmt;
+ while (*p == ' ') {
+ p++;
+ q++;
+ }
+ while (*q) {
+ if (*q == ' ') {
+ XPUSHs(sv_2mortal(newSVpvn(p, q - p)));
+ p = q + 1;
+
+ /*
+ * Don't use an empty string
+ */
+ while (*p == ' ') p++;
+ q = p;
+ }
+ q++;
+ }
+
+ /*
+ * And the last bit.
+ */
+ if (*p) {
+ XPUSHs(sv_2mortal(newSVpvn(p, strlen(p))));
+ }
+
+ PUTBACK;
+
+ count = call_pv(inst->func_xlat, G_SCALAR | G_EVAL);
+
+ SPAGAIN;
+ if (SvTRUE(ERRSV)) {
+ REDEBUG("Exit %s", SvPV(ERRSV,n_a));
+ (void)POPs;
+ } else if (count > 0) {
+ tmp = POPp;
+ strlcpy(out, tmp, freespace);
+ ret = strlen(out);
+
+ RDEBUG("Len is %zu , out is %s freespace is %zu", ret, out, freespace);
+ }
+
+ PUTBACK ;
+ FREETMPS ;
+ LEAVE ;
+
+ }
+
+ return ret;
+}
+
+/*
+ * Parse a configuration section, and populate a HV.
+ * This function is recursively called (allows to have nested hashes.)
+ */
+static void perl_parse_config(CONF_SECTION *cs, int lvl, HV *rad_hv)
+{
+ if (!cs || !rad_hv) return;
+
+ int indent_section = (lvl + 1) * 4;
+ int indent_item = (lvl + 2) * 4;
+
+ DEBUG("%*s%s {", indent_section, " ", cf_section_name1(cs));
+
+ CONF_ITEM *ci = NULL;
+
+ while ((ci = cf_item_find_next(cs, ci))) {
+ /*
+ * This is a section.
+ * Create a new HV, store it as a reference in current HV,
+ * Then recursively call perl_parse_config with this section and the new HV.
+ */
+ if (cf_item_is_section(ci)) {
+ CONF_SECTION *sub_cs = cf_item_to_section(ci);
+ char const *key = cf_section_name1(sub_cs); /* hash key */
+ HV *sub_hv;
+ SV *ref;
+
+ if (!key) continue;
+
+ if (hv_exists(rad_hv, key, strlen(key))) {
+ WARN("rlm_perl: Ignoring duplicate config section '%s'", key);
+ continue;
+ }
+
+ sub_hv = newHV();
+ ref = newRV_inc((SV*) sub_hv);
+
+ (void)hv_store(rad_hv, key, strlen(key), ref, 0);
+
+ perl_parse_config(sub_cs, lvl + 1, sub_hv);
+ } else if (cf_item_is_pair(ci)){
+ CONF_PAIR *cp = cf_item_to_pair(ci);
+ char const *key = cf_pair_attr(cp); /* hash key */
+ char const *value = cf_pair_value(cp); /* hash value */
+
+ if (!key || !value) continue;
+
+ /*
+ * This is an item.
+ * Store item attr / value in current HV.
+ */
+ if (hv_exists(rad_hv, key, strlen(key))) {
+ WARN("rlm_perl: Ignoring duplicate config item '%s'", key);
+ continue;
+ }
+
+ (void)hv_store(rad_hv, key, strlen(key), newSVpvn(value, strlen(value)), 0);
+
+ DEBUG("%*s%s = %s", indent_item, " ", key, value);
+ }
+ }
+
+ DEBUG("%*s}", indent_section, " ");
+}
+
+static int mod_bootstrap(CONF_SECTION *conf, void *instance)
+{
+ rlm_perl_t *inst = instance;
+
+ char const *xlat_name;
+
+ INFO("Perl version: %s", PERL_API_VERSION_STRING);
+
+ xlat_name = cf_section_name2(conf);
+ if (!xlat_name) xlat_name = cf_section_name1(conf);
+
+ xlat_register(xlat_name, perl_xlat, NULL, inst);
+
+ return 0;
+}
+
+/*
+ * Do any per-module initialization that is separate to each
+ * configured instance of the module. e.g. set up connections
+ * to external databases, read configuration files, set up
+ * dictionary entries, etc.
+ *
+ * If configuration information is given in the config section
+ * that must be referenced in later calls, store a handle to it
+ * in *instance otherwise put a null pointer there.
+ *
+ * Setup a hashes wich we will use later
+ * parse a module and give him a chance to live
+ *
+ */
+static int mod_instantiate(CONF_SECTION *conf, void *instance)
+{
+ rlm_perl_t *inst = instance;
+ AV *end_AV;
+
+ char const **embed_c; /* Stupid Perl and lack of const consistency */
+ char **embed;
+ char **envp = NULL;
+ int exitstatus = 0, argc=0;
+ char arg[] = "0";
+
+ CONF_SECTION *cs;
+
+#ifdef USE_ITHREADS
+ /*
+ * Create pthread key. This key will be stored in instance
+ */
+ pthread_mutex_init(&inst->clone_mutex, NULL);
+
+ inst->thread_key = rad_malloc(sizeof(*inst->thread_key));
+ memset(inst->thread_key,0,sizeof(*inst->thread_key));
+
+ rlm_perl_make_key(inst->thread_key);
+#endif
+
+ /*
+ * Setup the argument array we pass to the perl interpreter
+ */
+ MEM(embed_c = talloc_zero_array(inst, char const *, 4));
+ memcpy(&embed, &embed_c, sizeof(embed));
+ embed_c[0] = NULL;
+ if (inst->perl_flags) {
+ embed_c[1] = inst->perl_flags;
+ embed_c[2] = inst->module;
+ embed_c[3] = arg;
+ argc = 4;
+ } else {
+ embed_c[1] = inst->module;
+ embed_c[2] = arg;
+ argc = 3;
+ }
+
+ /*
+ * Create tweak the server's environment to support
+ * perl. Docs say only call this once... Oops.
+ */
+ if (!perl_sys_init3_called) {
+ PERL_SYS_INIT3(&argc, &embed, &envp);
+ perl_sys_init3_called = 1;
+ }
+
+ /*
+ * Allocate a new perl interpreter to do the parsing
+ */
+ if ((inst->perl = perl_alloc()) == NULL) {
+ ERROR("rlm_perl: No memory for allocating new perl !");
+ return -1;
+ }
+ perl_construct(inst->perl); /* ...and initialise it */
+
+#ifdef USE_ITHREADS
+ PL_perl_destruct_level = 2;
+
+ {
+ dTHXa(inst->perl);
+ }
+ PERL_SET_CONTEXT(inst->perl);
+#endif
+
+#if PERL_REVISION >= 5 && PERL_VERSION >=8
+ PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
+#endif
+
+ exitstatus = perl_parse(inst->perl, xs_init, argc, embed, NULL);
+
+ end_AV = PL_endav;
+ PL_endav = (AV *)NULL;
+
+ if (exitstatus) {
+ ERROR("rlm_perl: perl_parse failed: %s not found or has syntax errors", inst->module);
+ return -1;
+ }
+
+ /* parse perl configuration sub-section */
+ cs = cf_section_sub_find(conf, "config");
+ if (cs) {
+ inst->rad_perlconf_hv = get_hv("RAD_PERLCONF", 1);
+ perl_parse_config(cs, 0, inst->rad_perlconf_hv);
+ }
+
+ inst->perl_parsed = true;
+ perl_run(inst->perl);
+
+ PL_endav = end_AV;
+
+ return 0;
+}
+
+static void perl_vp_to_svpvn_element(REQUEST *request, AV *av, VALUE_PAIR const *vp,
+ int *i, const char *hash_name, const char *list_name)
+{
+ size_t len;
+ SV *sv;
+ char buffer[1024];
+
+
+ switch (vp->da->type) {
+ case PW_TYPE_STRING:
+ if (vp->da->flags.secret && request->root->suppress_secrets && (rad_debug_lvl < 3)) {
+ RDEBUG("$%s{'%s'}[%i] = &%s:%s -> <<< secret >>>", hash_name, vp->da->name, *i,
+ list_name, vp->da->name);
+ } else {
+ RDEBUG("$%s{'%s'}[%i] = &%s:%s -> '%s'", hash_name, vp->da->name, *i,
+ list_name, vp->da->name, vp->vp_strvalue);
+ }
+ sv = newSVpvn(vp->vp_strvalue, vp->vp_length);
+ break;
+
+ default:
+ len = vp_prints_value(buffer, sizeof(buffer), vp, 0);
+ if (vp->da->flags.secret && request->root->suppress_secrets && (rad_debug_lvl < 3)) {
+ RDEBUG("$%s{'%s'}[%i] = &%s:%s -> <<< secret >>>", hash_name, vp->da->name, *i,
+ list_name, vp->da->name);
+ } else {
+ RDEBUG("$%s{'%s'}[%i] = &%s:%s -> '%s'", hash_name, vp->da->name, *i,
+ list_name, vp->da->name, buffer);
+ }
+ sv = newSVpvn(buffer, truncate_len(len, sizeof(buffer)));
+ break;
+ }
+
+ if (!sv) return;
+ SvTAINTED_on(sv);
+ av_push(av, sv);
+ (*i)++;
+}
+
+/*
+ * get the vps and put them in perl hash
+ * If one VP have multiple values it is added as array_ref
+ * Example for this is Cisco-AVPair that holds multiple values.
+ * Which will be available as array_ref in $RAD_REQUEST{'Cisco-AVPair'}
+ */
+static void perl_store_vps(UNUSED TALLOC_CTX *ctx, REQUEST *request, VALUE_PAIR **vps, HV *rad_hv,
+ const char *hash_name, const char *list_name)
+{
+ VALUE_PAIR *vp;
+ char *tbuff;
+ size_t tbufflen = 1024;
+
+ hv_undef(rad_hv);
+
+ vp_cursor_t cursor;
+
+ /*
+ * Find out how much room to allocate.
+ */
+ for (vp = fr_cursor_init(&cursor, vps);
+ vp;
+ vp = fr_cursor_next(&cursor)) {
+ if (((vp->length * 2) + 3) > tbufflen) {
+ tbufflen = (vp->vp_length * 2) + 3;
+ }
+ }
+ tbuff = talloc_array(request, char, tbufflen);
+
+ RINDENT();
+ fr_pair_list_sort(vps, fr_pair_cmp_by_da_tag);
+ for (vp = fr_cursor_init(&cursor, vps);
+ vp;
+ vp = fr_cursor_next(&cursor)) {
+ VALUE_PAIR *next;
+ char const *name;
+ size_t len;
+ char namebuf[256];
+
+ /*
+ * Tagged attributes are added to the hash with name
+ * <attribute>:<tag>, others just use the normal attribute
+ * name as the key.
+ */
+ if (vp->da->flags.has_tag && (vp->tag != TAG_ANY)) {
+ snprintf(namebuf, sizeof(namebuf), "%s:%d", vp->da->name, vp->tag);
+ name = namebuf;
+ } else {
+ name = vp->da->name;
+ }
+
+ /*
+ * We've sorted by type, then tag, so attributes of the
+ * same type/tag should follow on from each other.
+ */
+ if ((next = fr_cursor_next_peek(&cursor)) && ATTRIBUTE_EQ(vp, next)) {
+ int i = 0;
+ AV *av;
+
+ av = newAV();
+
+ perl_vp_to_svpvn_element(request, av, vp, &i, hash_name, list_name);
+ do {
+ perl_vp_to_svpvn_element(request, av, next, &i, hash_name, list_name);
+ fr_cursor_next(&cursor);
+ } while ((next = fr_cursor_next_peek(&cursor)) && ATTRIBUTE_EQ(vp, next));
+ (void)hv_store(rad_hv, name, strlen(name), newRV_noinc((SV *)av), 0);
+
+ continue;
+ }
+
+ /*
+ * It's a normal single valued attribute
+ */
+ switch (vp->da->type) {
+ case PW_TYPE_STRING:
+ if (vp->da->flags.secret && request->root->suppress_secrets && (rad_debug_lvl < 3)) {
+ RDEBUG("$%s{'%s'} = &%s:%s -> <<< secret >>>", hash_name, vp->da->name, list_name,
+ vp->da->name);
+ } else {
+ RDEBUG("$%s{'%s'} = &%s:%s -> '%s'", hash_name, vp->da->name, list_name,
+ vp->da->name, vp->vp_strvalue);
+ }
+ (void)hv_store(rad_hv, name, strlen(name), newSVpvn(vp->vp_strvalue, vp->vp_length), 0);
+ break;
+
+ default:
+ len = vp_prints_value(tbuff, tbufflen, vp, 0);
+ if (vp->da->flags.secret && request->root->suppress_secrets && (rad_debug_lvl < 3)) {
+ RDEBUG("$%s{'%s'} = &%s:%s -> <<< secret >>>", hash_name, vp->da->name, list_name,
+ vp->da->name);
+ } else {
+ RDEBUG("$%s{'%s'} = &%s:%s -> '%s'", hash_name, vp->da->name,
+ list_name, vp->da->name, tbuff);
+ }
+ (void)hv_store(rad_hv, name, strlen(name),
+ newSVpvn(tbuff, truncate_len(len, tbufflen)), 0);
+ break;
+ }
+ }
+ REXDENT();
+
+ talloc_free(tbuff);
+}
+
+/*
+ *
+ * Verify that a Perl SV is a string and save it in FreeRadius
+ * Value Pair Format
+ *
+ */
+static void pairadd_sv(TALLOC_CTX *ctx, REQUEST *request, VALUE_PAIR **vps, char *key, SV *sv, FR_TOKEN op,
+ const char *hash_name, const char *list_name)
+{
+ char const *val = NULL;
+ VALUE_PAIR *vp;
+ STRLEN len;
+
+ if (!SvOK(sv)) {
+ REDEBUG("Internal failure creating pair &%s:%s %s $%s{'%s'} -> '%s'", list_name, key,
+ fr_int2str(fr_tokens, op, "<INVALID>"), hash_name, key, (val ? val : "undef"));
+ return;
+ }
+
+ val = SvPV(sv, len);
+ vp = fr_pair_make(ctx, vps, key, NULL, op);
+ if (!vp) {
+ fail:
+ REDEBUG("Failed to create pair - %s", fr_strerror());
+ REDEBUG(" &%s:%s %s $%s{'%s'} -> '%s'", list_name, key,
+ fr_int2str(fr_tokens, op, "<INVALID>"), hash_name, key, (val ? val : "undef"));
+ return;
+ }
+
+ switch (vp->da->type) {
+ case PW_TYPE_STRING:
+ fr_pair_value_bstrncpy(vp, val, len);
+ break;
+
+ default:
+ VERIFY_VP(vp);
+
+ if (fr_pair_value_from_str(vp, val, len) < 0) goto fail;
+ }
+
+ if (vp->da->flags.secret && request->root->suppress_secrets && (rad_debug_lvl < 3)) {
+ val = "<<< secret >>>";
+ }
+
+ RDEBUG("&%s:%s %s $%s{'%s'} -> '%s'", list_name, key, fr_int2str(fr_tokens, op, "<INVALID>"),
+ hash_name, key, val);
+}
+
+/*
+ * Gets the content from hashes
+ */
+static void get_hv_content(TALLOC_CTX *ctx, REQUEST *request, HV *my_hv, VALUE_PAIR **vps,
+ const char *hash_name, const char *list_name)
+{
+ SV *res_sv, **av_sv;
+ AV *av;
+ char *key;
+ I32 key_len, len, i, j;
+
+ *vps = NULL;
+ for (i = hv_iterinit(my_hv); i > 0; i--) {
+ res_sv = hv_iternextsv(my_hv,&key,&key_len);
+ if (SvROK(res_sv) && (SvTYPE(SvRV(res_sv)) == SVt_PVAV)) {
+ av = (AV*)SvRV(res_sv);
+ len = av_len(av);
+ for (j = 0; j <= len; j++) {
+ av_sv = av_fetch(av, j, 0);
+ pairadd_sv(ctx, request, vps, key, *av_sv, T_OP_ADD, hash_name, list_name);
+ }
+ } else {
+ pairadd_sv(ctx, request, vps, key, res_sv, T_OP_EQ, hash_name, list_name);
+ }
+ }
+
+ if (*vps) VERIFY_LIST(*vps, "perl");
+}
+
+/*
+ * Call the function_name inside the module
+ * Store all vps in hashes %RAD_CHECK %RAD_REPLY %RAD_REQUEST
+ *
+ */
+static int do_perl(void *instance, REQUEST *request, char const *function_name)
+{
+
+ rlm_perl_t *inst = instance;
+ VALUE_PAIR *vp;
+ int exitstatus=0, count;
+ STRLEN n_a;
+
+ HV *rad_reply_hv;
+ HV *rad_check_hv;
+ HV *rad_config_hv;
+ HV *rad_request_hv;
+ HV *rad_state_hv;
+#ifdef WITH_PROXY
+ HV *rad_request_proxy_hv;
+ HV *rad_request_proxy_reply_hv;
+#endif
+ SV *rad_requestp_sv;
+
+ /*
+ * Radius has told us to call this function, but none
+ * is defined.
+ */
+ if (!function_name) return RLM_MODULE_FAIL;
+
+#ifdef USE_ITHREADS
+ pthread_mutex_lock(&inst->clone_mutex);
+
+ PerlInterpreter *interp;
+
+ interp = rlm_perl_clone(inst->perl,inst->thread_key);
+ {
+ dTHXa(interp);
+ PERL_SET_CONTEXT(interp);
+ }
+
+ pthread_mutex_unlock(&inst->clone_mutex);
+#else
+ PERL_SET_CONTEXT(inst->perl);
+#endif
+
+ {
+ dSP;
+
+ ENTER;
+ SAVETMPS;
+
+ rad_reply_hv = get_hv("RAD_REPLY", 1);
+ rad_check_hv = get_hv("RAD_CHECK", 1);
+ rad_config_hv = get_hv("RAD_CONFIG", 1);
+ rad_request_hv = get_hv("RAD_REQUEST", 1);
+ rad_state_hv = get_hv("RAD_STATE", 1);
+ rad_requestp_sv = get_sv("RAD___REQUESTP", 1);
+
+ perl_store_vps(request->packet, request, &request->packet->vps, rad_request_hv, "RAD_REQUEST", "request");
+ perl_store_vps(request->reply, request, &request->reply->vps, rad_reply_hv, "RAD_REPLY", "reply");
+ perl_store_vps(request, request, &request->config, rad_check_hv, "RAD_CHECK", "control");
+ perl_store_vps(request, request, &request->config, rad_config_hv, "RAD_CONFIG", "control");
+ perl_store_vps(request->state_ctx, request, &request->state, rad_state_hv, "RAD_STATE", "session-state");
+
+#ifdef WITH_PROXY
+ rad_request_proxy_hv = get_hv("RAD_REQUEST_PROXY",1);
+ rad_request_proxy_reply_hv = get_hv("RAD_REQUEST_PROXY_REPLY",1);
+
+ if (request->proxy != NULL) {
+ perl_store_vps(request->proxy, request, &request->proxy->vps, rad_request_proxy_hv,
+ "RAD_REQUEST_PROXY", "proxy-request");
+ } else {
+ hv_undef(rad_request_proxy_hv);
+ }
+
+ if (request->proxy_reply != NULL) {
+ perl_store_vps(request->proxy_reply, request, &request->proxy_reply->vps,
+ rad_request_proxy_reply_hv, "RAD_REQUEST_PROXY_REPLY", "proxy-reply");
+ } else {
+ hv_undef(rad_request_proxy_reply_hv);
+ }
+#endif
+
+ /*
+ * Store pointer to request structure globally so xlat works
+ * We mark it read-only for interpreter so end users will not be
+ * in posession to change it and crash radiusd with bogus pointer
+ */
+ SvREADONLY_off(rad_requestp_sv);
+ sv_setiv(rad_requestp_sv, PTR2IV(request));
+ SvREADONLY_on(rad_requestp_sv);
+
+ PUSHMARK(SP);
+ /*
+ * This way %RAD_xx can be pushed onto stack as sub parameters.
+ * XPUSHs( newRV_noinc((SV *)rad_request_hv) );
+ * XPUSHs( newRV_noinc((SV *)rad_reply_hv) );
+ * XPUSHs( newRV_noinc((SV *)rad_check_hv) );
+ * PUTBACK;
+ */
+
+ count = call_pv(function_name, G_SCALAR | G_EVAL | G_NOARGS);
+
+ SPAGAIN;
+
+ if (SvTRUE(ERRSV)) {
+ RDEBUG("perl_embed:: module = %s , func = %s exit status= %s\n",
+ inst->module, function_name, SvPV(ERRSV,n_a));
+ (void)POPs;
+ count = 0;
+ exitstatus = RLM_MODULE_FAIL;
+ }
+
+ if (count == 1) {
+ exitstatus = POPi;
+ if (exitstatus >= 100 || exitstatus < 0) {
+ exitstatus = RLM_MODULE_FAIL;
+ }
+ }
+
+
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ vp = NULL;
+ get_hv_content(request->packet, request, rad_request_hv, &vp, "RAD_REQUEST", "request");
+ if (vp) {
+ fr_pair_list_free(&request->packet->vps);
+ request->packet->vps = vp;
+ vp = NULL;
+
+ /*
+ * Update cached copies
+ */
+ request->username = fr_pair_find_by_num(request->packet->vps, PW_USER_NAME, 0, TAG_ANY);
+ request->password = fr_pair_find_by_num(request->packet->vps, PW_USER_PASSWORD, 0, TAG_ANY);
+ if (!request->password)
+ request->password = fr_pair_find_by_num(request->packet->vps, PW_CHAP_PASSWORD, 0, TAG_ANY);
+ }
+
+ get_hv_content(request->reply, request, rad_reply_hv, &vp, "RAD_REPLY", "reply");
+ if (vp) {
+ fr_pair_list_free(&request->reply->vps);
+ request->reply->vps = vp;
+ vp = NULL;
+ }
+
+ get_hv_content(request, request, rad_check_hv, &vp, "RAD_CHECK", "control");
+ if (vp) {
+ fr_pair_list_free(&request->config);
+ request->config = vp;
+ vp = NULL;
+ }
+
+ get_hv_content(request->state_ctx, request, rad_state_hv, &vp, "RAD_STATE", "session-state");
+ if (vp) {
+ fr_pair_list_free(&request->state);
+ request->state = vp;
+ vp = NULL;
+ }
+
+#ifdef WITH_PROXY
+ if (request->proxy) {
+ get_hv_content(request->proxy, request, rad_request_proxy_hv, &vp,
+ "RAD_REQUEST_PROXY", "proxy-request");
+ if (vp) {
+ fr_pair_list_free(&request->proxy->vps);
+ request->proxy->vps = vp;
+ vp = NULL;
+ }
+ }
+
+ if (request->proxy_reply) {
+ get_hv_content(request->proxy_reply, request, rad_request_proxy_reply_hv, &vp,
+ "RAD_REQUEST_PROXY_REPLY", "proxy-reply");
+ if (vp) {
+ fr_pair_list_free(&request->proxy_reply->vps);
+ request->proxy_reply->vps = vp;
+ vp = NULL;
+ }
+ }
+#endif
+
+ }
+ return exitstatus;
+}
+
+#define RLM_PERL_FUNC(_x) static rlm_rcode_t CC_HINT(nonnull) mod_##_x(void *instance, REQUEST *request) \
+ { \
+ return do_perl(instance, request, \
+ ((rlm_perl_t *)instance)->func_##_x); \
+ }
+
+RLM_PERL_FUNC(authorize)
+RLM_PERL_FUNC(authenticate)
+RLM_PERL_FUNC(post_auth)
+
+RLM_PERL_FUNC(checksimul)
+
+#ifdef WITH_PROXY
+RLM_PERL_FUNC(pre_proxy)
+RLM_PERL_FUNC(post_proxy)
+#endif
+
+#ifdef WITH_COA
+RLM_PERL_FUNC(recv_coa)
+RLM_PERL_FUNC(send_coa)
+#endif
+
+RLM_PERL_FUNC(preacct)
+
+/*
+ * Write accounting information to this modules database.
+ */
+static rlm_rcode_t CC_HINT(nonnull) mod_accounting(void *instance, REQUEST *request)
+{
+ VALUE_PAIR *pair;
+ int acctstatustype=0;
+
+ if ((pair = fr_pair_find_by_num(request->packet->vps, PW_ACCT_STATUS_TYPE, 0, TAG_ANY)) != NULL) {
+ acctstatustype = pair->vp_integer;
+ } else {
+ RDEBUG("Invalid Accounting Packet");
+ return RLM_MODULE_INVALID;
+ }
+
+ switch (acctstatustype) {
+ case PW_STATUS_START:
+ if (((rlm_perl_t *)instance)->func_start_accounting) {
+ return do_perl(instance, request,
+ ((rlm_perl_t *)instance)->func_start_accounting);
+ } else {
+ return do_perl(instance, request,
+ ((rlm_perl_t *)instance)->func_accounting);
+ }
+
+ case PW_STATUS_STOP:
+ if (((rlm_perl_t *)instance)->func_stop_accounting) {
+ return do_perl(instance, request,
+ ((rlm_perl_t *)instance)->func_stop_accounting);
+ } else {
+ return do_perl(instance, request,
+ ((rlm_perl_t *)instance)->func_accounting);
+ }
+
+ default:
+ return do_perl(instance, request,
+ ((rlm_perl_t *)instance)->func_accounting);
+ }
+}
+
+
+/*
+ * Detach a instance give a chance to a module to make some internal setup ...
+ */
+DIAG_OFF(nested-externs)
+static int mod_detach(void *instance)
+{
+ rlm_perl_t *inst = (rlm_perl_t *) instance;
+ int exitstatus = 0, count = 0;
+
+
+ if (inst->perl_parsed) {
+ dTHXa(inst->perl);
+ PERL_SET_CONTEXT(inst->perl);
+ if (inst->rad_perlconf_hv != NULL) hv_undef(inst->rad_perlconf_hv);
+
+ if (inst->func_detach) {
+ dSP; ENTER; SAVETMPS;
+ PUSHMARK(SP);
+
+ count = call_pv(inst->func_detach, G_SCALAR | G_EVAL );
+ SPAGAIN;
+
+ if (count == 1) {
+ exitstatus = POPi;
+ if (exitstatus >= 100 || exitstatus < 0) {
+ exitstatus = RLM_MODULE_FAIL;
+ }
+ }
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+ }
+ }
+
+#ifdef USE_ITHREADS
+ rlm_perl_destruct(inst->perl);
+ pthread_mutex_destroy(&inst->clone_mutex);
+#else
+ perl_destruct(inst->perl);
+ perl_free(inst->perl);
+#endif
+
+ /*
+ * Hope this is not really needed.
+ * Is only allowed to be called once just before exit().
+ *
+ PERL_SYS_TERM();
+ */
+ return exitstatus;
+}
+DIAG_ON(nested-externs)
+
+/*
+ * The module name should be the only globally exported symbol.
+ * That is, everything else should be 'static'.
+ *
+ * If the module needs to temporarily modify it's instantiation
+ * data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
+ * The server will then take care of ensuring that the module
+ * is single-threaded.
+ */
+extern module_t rlm_perl;
+module_t rlm_perl = {
+ .magic = RLM_MODULE_INIT,
+ .name = "perl",
+#ifdef USE_ITHREADS
+ .type = RLM_TYPE_THREAD_SAFE,
+#else
+ .type = RLM_TYPE_THREAD_UNSAFE,
+#endif
+ .inst_size = sizeof(rlm_perl_t),
+ .config = module_config,
+ .bootstrap = mod_bootstrap,
+ .instantiate = mod_instantiate,
+ .detach = mod_detach,
+ .methods = {
+ [MOD_AUTHENTICATE] = mod_authenticate,
+ [MOD_AUTHORIZE] = mod_authorize,
+ [MOD_PREACCT] = mod_preacct,
+ [MOD_ACCOUNTING] = mod_accounting,
+ [MOD_SESSION] = mod_checksimul,
+#ifdef WITH_PROXY
+ [MOD_PRE_PROXY] = mod_pre_proxy,
+ [MOD_POST_PROXY] = mod_post_proxy,
+#endif
+ [MOD_POST_AUTH] = mod_post_auth,
+#ifdef WITH_COA
+ [MOD_RECV_COA] = mod_recv_coa,
+ [MOD_SEND_COA] = mod_send_coa
+#endif
+ },
+};