diff options
Diffstat (limited to 'src/modules/rlm_perl/rlm_perl.c')
| -rw-r--r-- | src/modules/rlm_perl/rlm_perl.c | 1191 |
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 + }, +}; 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