static SEXP_t *oval_filter_to_sexp(struct oval_filter *filter) { SEXP_t *elm, *attr, *r0, *r1; oval_filter_action_t act; struct oval_state *ste; char *ste_id; act = oval_filter_get_filter_action(filter); ste = oval_filter_get_state(filter); ste_id = oval_state_get_id(ste); attr = probe_attr_creat("action", r0 = SEXP_number_newu(act), NULL); elm = probe_ent_creat1("filter", attr, r1 = SEXP_string_newf("%s", ste_id)); SEXP_vfree(attr, r0, r1, NULL); return (elm); }
int probe_main(probe_ctx *ctx, void *arg) { SEXP_t *path_ent, *file_ent, *inst_ent, *bh_ent, *patt_ent, *filepath_ent, *probe_in; SEXP_t *r0; /* char *i_val, *m_val, *s_val; */ bool val; struct pfdata pfd; int ret = 0; #if defined USE_REGEX_PCRE int errorffset = -1; const char *error; #elif defined USE_REGEX_POSIX regex_t _re; pfd.compiled_regex = &_re; int err; #endif OVAL_FTS *ofts; OVAL_FTSENT *ofts_ent; (void)arg; memset(&pfd, 0, sizeof(pfd)); probe_in = probe_ctx_getobject(ctx); over = probe_obj_get_platform_schema_version(probe_in); path_ent = probe_obj_getent(probe_in, "path", 1); file_ent = probe_obj_getent(probe_in, "filename", 1); inst_ent = probe_obj_getent(probe_in, "instance", 1); patt_ent = probe_obj_getent(probe_in, "pattern", 1); filepath_ent = probe_obj_getent(probe_in, "filepath", 1); bh_ent = probe_obj_getent(probe_in, "behaviors", 1); /* we want (path+filename or filepath) + instance + pattern*/ if ( ((path_ent == NULL || file_ent == NULL) && filepath_ent==NULL) || inst_ent==NULL || patt_ent==NULL) { SEXP_free (patt_ent); ret = PROBE_ENOELM; goto cleanup; } /* get pattern from SEXP */ SEXP_t *ent_val; ent_val = probe_ent_getval(patt_ent); pfd.pattern = SEXP_string_cstr(ent_val); assume_d(pfd.pattern != NULL, -1); SEXP_free(patt_ent); SEXP_free(ent_val); /* wtf? i_val = s_val = "0"; m_val = "1"; */ /* reset filebehavior attributes if 'filepath' entity is used */ if (filepath_ent != NULL && bh_ent != NULL) { SEXP_t *r1, *r2, *r3; r1 = probe_ent_getattrval(bh_ent, "ignore_case"); r2 = probe_ent_getattrval(bh_ent, "multiline"); r3 = probe_ent_getattrval(bh_ent, "singleline"); r0 = probe_attr_creat("ignore_case", r1, "multiline", r2, "singleline", r3, NULL); SEXP_free(bh_ent); bh_ent = probe_ent_creat1("behaviors", r0, NULL); SEXP_vfree(r0, r1, r2, r3, NULL); } probe_tfc54behaviors_canonicalize(&bh_ent); pfd.instance_ent = inst_ent; pfd.ctx = ctx; #if defined USE_REGEX_PCRE pfd.re_opts = PCRE_UTF8; r0 = probe_ent_getattrval(bh_ent, "ignore_case"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_CASELESS; } r0 = probe_ent_getattrval(bh_ent, "multiline"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_MULTILINE; } r0 = probe_ent_getattrval(bh_ent, "singleline"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_DOTALL; } pfd.compiled_regex = pcre_compile(pfd.pattern, pfd.re_opts, &error, &errorffset, NULL); if (pfd.compiled_regex == NULL) { SEXP_t *msg; msg = probe_msg_creatf(OVAL_MESSAGE_LEVEL_ERROR, "pcre_compile() '%s' %s.", pfd.pattern, error); probe_cobj_add_msg(probe_ctx_getresult(pfd.ctx), msg); SEXP_free(msg); probe_cobj_set_flag(probe_ctx_getresult(pfd.ctx), SYSCHAR_FLAG_ERROR); goto cleanup; } #elif defined USE_REGEX_POSIX pfd.re_opts = REG_EXTENDED | REG_NEWLINE; r0 = probe_ent_getattrval(bh_ent, "ignore_case"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= REG_ICASE; } if ((err = regcomp(pfd.compiled_regex, pfd.pattern, pfd.re_opts)) != 0) { SEXP_t *msg; msg = probe_msg_creatf(OVAL_MESSAGE_LEVEL_ERROR, "regcomp() '%s' returned %d.", pfd.pattern, err); probe_cobj_add_msg(probe_ctx_getresult(pfd.ctx), msg); SEXP_free(msg); probe_cobj_set_flag(probe_ctx_getresult(pfd.ctx), SYSCHAR_FLAG_ERROR); goto cleanup; } #endif if ((ofts = oval_fts_open(path_ent, file_ent, filepath_ent, bh_ent)) != NULL) { while ((ofts_ent = oval_fts_read(ofts)) != NULL) { if (ofts_ent->fts_info == FTS_F || ofts_ent->fts_info == FTS_SL) { // todo: handle return code process_file(ofts_ent->path, ofts_ent->file, &pfd); } oval_ftsent_free(ofts_ent); } oval_fts_close(ofts); } cleanup: SEXP_free(file_ent); SEXP_free(path_ent); SEXP_free(inst_ent); SEXP_free(bh_ent); SEXP_free(filepath_ent); if (pfd.pattern != NULL) oscap_free(pfd.pattern); #if defined USE_REGEX_PCRE if (pfd.compiled_regex != NULL) pcre_free(pfd.compiled_regex); #elif defined USE_REGEX_POSIX regfree(&_re); #endif return ret; }
int probe_main(probe_ctx *ctx, void *arg) { SEXP_t *path_ent, *file_ent, *inst_ent, *bh_ent, *patt_ent, *filepath_ent, *probe_in; SEXP_t *r0; /* char *i_val, *m_val, *s_val; */ bool val; struct pfdata pfd; int ret = 0; int errorffset = -1; const char *error; OVAL_FTS *ofts; OVAL_FTSENT *ofts_ent; char path_with_root[PATH_MAX + 1]; unsigned int root_len = 0; (void)arg; memset(&pfd, 0, sizeof(pfd)); probe_in = probe_ctx_getobject(ctx); over = probe_obj_get_platform_schema_version(probe_in); path_ent = probe_obj_getent(probe_in, "path", 1); file_ent = probe_obj_getent(probe_in, "filename", 1); inst_ent = probe_obj_getent(probe_in, "instance", 1); patt_ent = probe_obj_getent(probe_in, "pattern", 1); filepath_ent = probe_obj_getent(probe_in, "filepath", 1); bh_ent = probe_obj_getent(probe_in, "behaviors", 1); /* we want (path+filename or filepath) + instance + pattern*/ if ( ((path_ent == NULL || file_ent == NULL) && filepath_ent==NULL) || inst_ent==NULL || patt_ent==NULL) { SEXP_free (patt_ent); ret = PROBE_ENOELM; goto cleanup; } /* get pattern from SEXP */ SEXP_t *ent_val; ent_val = probe_ent_getval(patt_ent); pfd.pattern = SEXP_string_cstr(ent_val); assume_d(pfd.pattern != NULL, -1); SEXP_free(patt_ent); SEXP_free(ent_val); /* wtf? i_val = s_val = "0"; m_val = "1"; */ /* reset filebehavior attributes if 'filepath' entity is used */ if (filepath_ent != NULL && bh_ent != NULL) { SEXP_t *r1, *r2, *r3; r1 = r2 = r3 = NULL; if (probe_ent_attrexists(bh_ent, "ignore_case")) { r1 = probe_ent_getattrval(bh_ent, "ignore_case"); } if (probe_ent_attrexists(bh_ent, "multiline")) { r2 = probe_ent_getattrval(bh_ent, "multiline"); } if (probe_ent_attrexists(bh_ent, "singleline")) { r3 = probe_ent_getattrval(bh_ent, "singleline"); } r0 = SEXP_list_new(NULL); SEXP_free(bh_ent); bh_ent = probe_ent_creat1("behaviors", r0, NULL); SEXP_free(r0); if (r1) { probe_ent_attr_add(bh_ent, "ignore_case", r1); SEXP_free(r1); } if (r2) { probe_ent_attr_add(bh_ent, "multiline", r2); SEXP_free(r2); } if (r3) { probe_ent_attr_add(bh_ent, "singleline", r3); SEXP_free(r3); } } probe_tfc54behaviors_canonicalize(&bh_ent); pfd.instance_ent = inst_ent; pfd.ctx = ctx; pfd.re_opts = PCRE_UTF8; r0 = probe_ent_getattrval(bh_ent, "ignore_case"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_CASELESS; } r0 = probe_ent_getattrval(bh_ent, "multiline"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_MULTILINE; } r0 = probe_ent_getattrval(bh_ent, "singleline"); if (r0) { val = SEXP_string_getb(r0); SEXP_free(r0); if (val) pfd.re_opts |= PCRE_DOTALL; } pfd.compiled_regex = pcre_compile(pfd.pattern, pfd.re_opts, &error, &errorffset, NULL); if (pfd.compiled_regex == NULL) { SEXP_t *msg; msg = probe_msg_creatf(OVAL_MESSAGE_LEVEL_ERROR, "pcre_compile() '%s' %s.", pfd.pattern, error); probe_cobj_add_msg(probe_ctx_getresult(pfd.ctx), msg); SEXP_free(msg); probe_cobj_set_flag(probe_ctx_getresult(pfd.ctx), SYSCHAR_FLAG_ERROR); goto cleanup; } path_with_root[PATH_MAX] = '\0'; if (OSCAP_GSYM(offline_mode) & PROBE_OFFLINE_OWN) { strncpy(path_with_root, getenv("OSCAP_PROBE_ROOT"), PATH_MAX); root_len = strlen(path_with_root); if (path_with_root[root_len - 1] == FILE_SEPARATOR) --root_len; } if ((ofts = oval_fts_open(path_ent, file_ent, filepath_ent, bh_ent, probe_ctx_getresult(ctx))) != NULL) { while ((ofts_ent = oval_fts_read(ofts)) != NULL) { if (ofts_ent->fts_info == FTS_F || ofts_ent->fts_info == FTS_SL) { strncpy(path_with_root + root_len, ofts_ent->path, PATH_MAX - root_len); // todo: handle return code process_file(path_with_root, ofts_ent->file, &pfd); } oval_ftsent_free(ofts_ent); } oval_fts_close(ofts); } cleanup: SEXP_free(file_ent); SEXP_free(path_ent); SEXP_free(inst_ent); SEXP_free(bh_ent); SEXP_free(filepath_ent); if (pfd.pattern != NULL) free(pfd.pattern); if (pfd.compiled_regex != NULL) pcre_free(pfd.compiled_regex); return ret; }
int probe_main(probe_ctx *ctx, void *mutex) { LDAP *ldp; LDAPMessage *ldpres, *entry; SEXP_t *se_ldap_behaviors = NULL, *se_relative_dn = NULL; SEXP_t *se_suffix = NULL, *se_attribute = NULL; SEXP_t *sa_scope, *sv_op; SEXP_t *item; SEXP_t *probe_in; char *relative_dn = NULL; char *suffix = NULL, *xattribute = NULL; char *uri_list, *uri, *uri_save, *attr; int scope; char base[2048]; char *attrs[3]; bool a_pattern_match = false, rdn_pattern_match = false; /* runtime */ #if defined(PROBE_LDAP_MUTEX) assume_r(mutex != NULL, PROBE_EINIT); #endif probe_in = probe_ctx_getobject(ctx); se_ldap_behaviors = probe_obj_getent(probe_in, "behaviors", 1); if (se_ldap_behaviors != NULL) { sa_scope = probe_ent_getattrval(se_ldap_behaviors, "scope"); SEXP_free(se_ldap_behaviors); if (sa_scope == NULL) { dE("Atrribute `scope' is missing!"); return (PROBE_ENOATTR); } if (!SEXP_stringp(sa_scope)) { dE("Invalid value type of the `scope' attribute."); SEXP_free(sa_scope); return (PROBE_EINVAL); } if (SEXP_strcmp(sa_scope, "ONE") == 0) scope = LDAP_SCOPE_ONELEVEL; else if (SEXP_strcmp(sa_scope, "BASE") == 0) scope = LDAP_SCOPE_BASE; else if (SEXP_strcmp(sa_scope, "SUBTREE") == 0) scope = LDAP_SCOPE_SUBTREE; else { dE("Invalid value of the `scope' attribute."); SEXP_free(sa_scope); return (PROBE_EINVAL); } SEXP_free(sa_scope); } else scope = LDAP_SCOPE_BASE; #define get_string(dst, se_dst, obj, ent_name) \ do { \ SEXP_t *__sval; \ \ __sval = probe_obj_getentval (obj, ent_name, 1); \ \ if (__sval != NULL) { \ (dst) = SEXP_string_cstr (__sval); \ \ if ((dst) == NULL) { \ SEXP_free(__sval); \ return (PROBE_EINVAL); \ } \ \ (se_dst) = __sval; \ } else { \ return (PROBE_ENOATTR); \ } \ } while (0) get_string(suffix, se_suffix, probe_in, "suffix"); get_string(relative_dn, se_relative_dn, probe_in, "relative_dn"); get_string(xattribute, se_attribute, probe_in, "attribute"); if ((sv_op = probe_ent_getattrval(se_relative_dn, "operation")) != NULL) { if (SEXP_number_geti_32(sv_op) == OVAL_OPERATION_PATTERN_MATCH) rdn_pattern_match = true; SEXP_free(sv_op); } if ((sv_op = probe_ent_getattrval(se_attribute, "operation")) != NULL) { if (SEXP_number_geti_32(sv_op) == OVAL_OPERATION_PATTERN_MATCH) a_pattern_match = true; SEXP_free(sv_op); } /* * Construct the attribute array for ldap_search_* * * nil -> "1.1" * .* -> "*" * "foo" -> "foo" */ attrs[0] = "objectClass"; if (xattribute == NULL) attrs[1] = strdup("1.1"); /* no attibutes */ else if (a_pattern_match) attrs[1] = strdup("*"); /* collect all, we'll filter them afterwards */ else attrs[1] = xattribute; /* no pattern match, use the string directly */ attrs[2] = NULL; /* * Construct `base' */ assume_r(((relative_dn ? strlen(relative_dn) : 0) + ( suffix ? strlen(suffix) : 0) + 2) < (sizeof base/sizeof(char)), PROBE_ERANGE); if (relative_dn != NULL) { strcpy(base, relative_dn); strcat(base, ","); strcat(base, suffix); } else strcpy(base, suffix); /* * Get URIs */ if (ldap_get_option(NULL, LDAP_OPT_URI, &uri_list) != LDAP_OPT_SUCCESS) { item = probe_item_creat("ldap57_item", NULL, NULL); probe_item_setstatus(item, SYSCHAR_STATUS_ERROR); probe_item_collect(ctx, item); dE("ldap_get_option failed"); goto fail0; } /* * Query each URI */ for (;;) { char *entry_dn = NULL; if ((uri = strtok_r(uri_list, " ,", &uri_save)) == NULL) break; ldp = NULL; if (ldap_initialize(&ldp, uri) != LDAP_SUCCESS) continue; if (ldap_search_ext_s(ldp, base, scope, NULL, attrs, 0, NULL /* serverctrls */, NULL /* clientctrls */, NULL /* timeout */, 0, &ldpres) != LDAP_SUCCESS) { item = probe_item_creat("ldap57_item", NULL, NULL); probe_item_setstatus(item, SYSCHAR_STATUS_ERROR); probe_item_collect(ctx, item); dE("ldap_search_ext_s failed"); goto fail0; } entry = ldap_first_entry(ldp, ldpres); entry_dn = ldap_get_dn(ldp, entry); while (entry != NULL) { BerElement *berelm = NULL; attr = ldap_first_attribute(ldp, entry, &berelm); /* XXX: pattern match filter */ while (attr != NULL) { SEXP_t *se_value = NULL; ber_tag_t bertag = LBER_DEFAULT; ber_len_t berlen = 0; Sockbuf *berbuf = NULL; SEXP_t se_tmp_mem; berbuf = ber_sockbuf_alloc(); /* * Prepare the value (record) entity. Collect only * primitive (i.e. simple) types. */ se_value = probe_ent_creat1("value", NULL, NULL); probe_ent_setdatatype(se_value, OVAL_DATATYPE_RECORD); /* * XXX: does ber_get_next() return LBER_ERROR after the last value? */ while ((bertag = ber_get_next(berbuf, &berlen, berelm)) != LBER_ERROR) { SEXP_t *field = NULL; oval_datatype_t field_type = OVAL_DATATYPE_UNKNOWN; switch(bertag & LBER_ENCODING_MASK) { case LBER_PRIMITIVE: dI("Found primitive value, bertag = %u", bertag); break; case LBER_CONSTRUCTED: dW("Don't know how to handle LBER_CONSTRUCTED values"); /* FALLTHROUGH */ default: dW("Skipping attribute value, bertag = %u", bertag); continue; } assume_d(bertag & LBER_PRIMITIVE, NULL); switch(bertag & LBER_BIG_TAG_MASK) { case LBER_BOOLEAN: { /* LDAPTYPE_BOOLEAN */ ber_int_t val = -1; if (ber_get_boolean(berelm, &val) == LBER_ERROR) { dW("ber_get_boolean: LBER_ERROR"); /* XXX: set error status on field */ continue; } assume_d(val != -1, NULL); field = probe_ent_creat1("field", NULL, SEXP_number_newb_r(&se_tmp_mem, (bool)val)); field_type = OVAL_DATATYPE_BOOLEAN; SEXP_free_r(&se_tmp_mem); } break; case LBER_INTEGER: { /* LDAPTYPE_INTEGER */ ber_int_t val = -1; if (ber_get_int(berelm, &val) == LBER_ERROR) { dW("ber_get_int: LBER_ERROR"); /* XXX: set error status on field */ continue; } field = probe_ent_creat1("field", NULL, SEXP_number_newi_r(&se_tmp_mem, (int)val)); field_type = OVAL_DATATYPE_INTEGER; SEXP_free_r(&se_tmp_mem); } break; case LBER_BITSTRING: /* LDAPTYPE_BIT_STRING */ dW("LBER_BITSTRING: not implemented"); continue; case LBER_OCTETSTRING: { /* * LDAPTYPE_PRINTABLE_STRING * LDAPTYPE_NUMERIC_STRING * LDAPTYPE_DN_STRING * LDAPTYPE_BINARY (?) */ char *val = NULL; if (ber_get_stringa(berelm, &val) == LBER_ERROR) { dW("ber_get_stringa: LBER_ERROR"); /* XXX: set error status on field */ continue; } assume_d(val != NULL, NULL); field = probe_ent_creat1("field", NULL, SEXP_string_new_r(&se_tmp_mem, val, strlen(val))); field_type = OVAL_DATATYPE_STRING; SEXP_free_r(&se_tmp_mem); ber_memfree(val); } break; case LBER_NULL: /* XXX: no equivalent LDAPTYPE_? or empty */ dI("LBER_NULL: skipped"); continue; case LBER_ENUMERATED: /* XXX: no equivalent LDAPTYPE_? */ dW("Don't know how to handle LBER_ENUMERATED type"); continue; default: dW("Unknown attribute value type, bertag = %u", bertag); continue; } if (field != NULL) { assume_d(field_type != OVAL_DATATYPE_UNKNOWN, NULL); probe_ent_setdatatype(field, field_type); probe_ent_attr_add(field, "name", SEXP_string_new_r(&se_tmp_mem, attr, strlen(attr))); SEXP_list_add(se_value, field); SEXP_free_r(&se_tmp_mem); SEXP_free(field); } } ber_sockbuf_free(berbuf); /* * Create the item */ item = probe_item_create(OVAL_INDEPENDENT_LDAP57, NULL, "suffix", OVAL_DATATYPE_STRING, suffix, "relative_dn", OVAL_DATATYPE_STRING, relative_dn, /* XXX: pattern match */ "attribute", OVAL_DATATYPE_STRING, attr, "object_class", OVAL_DATATYPE_STRING, "", "ldaptype", OVAL_DATATYPE_STRING, "", NULL); SEXP_list_add(item, se_value); SEXP_free(se_value); probe_item_collect(ctx, item); attr = ldap_next_attribute(ldp, entry, berelm); } ber_free(berelm, 0); ldap_memfree(entry_dn); entry = ldap_next_entry(ldp, entry); entry_dn = ldap_get_dn(ldp, entry); } /* * Close the LDAP connection and free resources */ ldap_unbind_ext_s(ldp, NULL, NULL); } ldap_memfree(uri_list); fail0: SEXP_free(se_suffix); SEXP_free(se_relative_dn); SEXP_free(se_attribute); free(suffix); free(relative_dn); free(attrs[1]); /* attribute */ return (0); }
static int oval_probe_variable_eval(oval_probe_session_t *sess, struct oval_syschar *syschar) { struct oval_value_iterator *vit; struct oval_variable *var; struct oval_object *obj; oval_syschar_collection_flag_t flag = SYSCHAR_FLAG_ERROR; int ret = 0; obj = oval_syschar_get_object(syschar); var = oval_probe_variable_objgetvar(obj); if (var == NULL) { oval_syschar_set_flag(syschar, SYSCHAR_FLAG_ERROR); return(-1); } if (oval_probe_query_variable(sess, var) != 0) { oval_syschar_set_flag(syschar, SYSCHAR_FLAG_ERROR); return(-1); } flag = oval_variable_get_collection_flag(var); switch (flag) { case SYSCHAR_FLAG_COMPLETE: case SYSCHAR_FLAG_INCOMPLETE: break; default: { char msg[100]; snprintf(msg, sizeof(msg), "There was a problem processing referenced variable (%s).", oval_variable_get_id(var)); dW("%s\n", msg); oval_syschar_add_new_message(syschar, msg, OVAL_MESSAGE_LEVEL_WARNING); oval_syschar_set_flag(syschar, SYSCHAR_FLAG_ERROR); return(1); } } vit = oval_variable_get_values(var); if (vit == NULL) { flag = SYSCHAR_FLAG_ERROR; oval_syschar_set_flag(syschar, SYSCHAR_FLAG_ERROR); return(1); } else { SEXP_t *r0, *item, *cobj, *vrent, *val_sexp, *valent; char *var_ref; cobj = probe_cobj_new(SYSCHAR_FLAG_UNKNOWN, NULL, NULL); /* Create shared entity */ var_ref = oval_variable_get_id(var); vrent = probe_ent_creat1("var_ref", NULL, r0 = SEXP_string_new(var_ref, strlen(var_ref))); SEXP_free(r0); while (oval_value_iterator_has_more(vit)) { oval_datatype_t dtype; struct oval_value *val; val = oval_value_iterator_next(vit); oval_value_cast(val, OVAL_DATATYPE_STRING); dtype = oval_value_get_datatype(val); val_sexp = oval_value_to_sexp(val, dtype); assume_d(val_sexp != NULL, -1); valent = probe_ent_creat1("value", NULL, val_sexp); item = probe_item_creat("variable_item", NULL, NULL); /* temporary workaround to generate ids */ _gen_item_id(item); /* Add shared var_ref entity */ SEXP_list_add(item, vrent); /* Add value entity */ SEXP_list_add(item, valent); /* Add item to the item list */ probe_cobj_add_item(cobj, item); SEXP_vfree(item, valent, val_sexp, NULL); } oval_value_iterator_free(vit); probe_cobj_compute_flag(cobj); ret = oval_sexp2sysch(cobj, syschar); SEXP_vfree(cobj, vrent, NULL); } return(ret); }