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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
commite4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch)
tree68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/radius_dict.l
parentInitial commit. (diff)
downloadwireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz
wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/radius_dict.l')
-rw-r--r--epan/radius_dict.l817
1 files changed, 817 insertions, 0 deletions
diff --git a/epan/radius_dict.l b/epan/radius_dict.l
new file mode 100644
index 00000000..c8c1825c
--- /dev/null
+++ b/epan/radius_dict.l
@@ -0,0 +1,817 @@
+%top {
+/* Include this before everything else, for various large-file definitions */
+#include "config.h"
+#include <wireshark.h>
+}
+
+/*
+ * We want a reentrant scanner.
+ */
+%option reentrant
+
+/*
+ * We don't use input, so don't generate code for it.
+ */
+%option noinput
+
+/*
+ * We don't use unput, so don't generate code for it.
+ */
+%option nounput
+
+/*
+ * We don't read interactively from the terminal.
+ */
+%option never-interactive
+
+/*
+ * We want to stop processing when we get to the end of the input.
+ */
+%option noyywrap
+
+/*
+ * The language we're scanning is case-insensitive.
+ */
+%option caseless
+
+/*
+ * The type for the state we keep for a scanner.
+ */
+%option extra-type="Radius_scanner_state_t*"
+
+/*
+ * We have to override the memory allocators so that we don't get
+ * "unused argument" warnings from the yyscanner argument (which
+ * we don't use, as we have a global memory allocator).
+ *
+ * We provide, as macros, our own versions of the routines generated by Flex,
+ * which just call malloc()/realloc()/free() (as the Flex versions do),
+ * discarding the extra argument.
+ */
+%option noyyalloc
+%option noyyrealloc
+%option noyyfree
+
+/*
+ * Prefix scanner routines with "Radius_" rather than "yy", so this scanner
+ * can coexist with other scanners.
+ */
+%option prefix="Radius_"
+
+%option outfile="radius_dict.c"
+
+%{
+ /* radius_dict.l
+ *
+ * RADIUS dictionary parser
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <epan/packet.h>
+#include <epan/dissectors/packet-radius.h>
+#include <wsutil/file_util.h>
+
+/*
+ * Disable diagnostics in the code generated by Flex.
+ */
+DIAG_OFF_FLEX()
+
+/*
+ * See
+ *
+ * http://freeradius.org/radiusd/man/dictionary.html
+ *
+ * for the format of RADIUS dictionary files.
+ *
+ * XXX - features not currently supported:
+ *
+ * integer64, ipv4prefix, combo-prefix, bool, size, decimal,
+ * timeval, struct, extended, long-extended, vsa, evs, vendor,
+ * cidr, uint{8,16,32,64}, int{8,16,32,64} as attribute types
+ * (some of these aren't documented);
+ *
+ * octets[N], where N is an integer, as an attribute type
+ * (not documented in the man page);
+ *
+ * internal, array, concat, and virtual as attribute flags (not
+ * documented in the man page);
+ *
+ * We should, perhaps, adopt FreeRADIUS's dictionary-parsing code in
+ * src/lib/dict.c and use that, rather than writing our own parser.
+ * See bug 13176.
+ */
+#define YY_USER_INIT BEGIN WS_OUT;
+
+#define ECHO
+#define MAX_INCLUDE_DEPTH 10
+
+typedef struct {
+ YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
+ int include_stack_ptr;
+
+ radius_dictionary_t* dict;
+ GHashTable* value_strings; /* GArray(value_string) by attribute name */
+
+ gchar* attr_name;
+ gchar* attr_id;
+ radius_attr_dissector_t* attr_type;
+ gchar* attr_vendor;
+ gchar* vendor_name;
+ guint32 vendor_id;
+ guint vendor_type_octets;
+ guint vendor_length_octets;
+ gboolean vendor_has_flags;
+ gchar* value_repr;
+ guint encrypted;
+ gboolean has_tag;
+ gchar* current_vendor;
+ guint current_vendor_evs_type;
+ gchar* current_attr;
+
+ gchar* directory;
+ gchar* fullpaths[MAX_INCLUDE_DEPTH];
+ int linenums[MAX_INCLUDE_DEPTH];
+
+ GString* error;
+} Radius_scanner_state_t;
+
+static void add_vendor(Radius_scanner_state_t* state, const gchar* name, guint32 id, guint type_octets, guint length_octets, gboolean has_flags);
+static gboolean add_attribute(Radius_scanner_state_t* state, const gchar*,const gchar*, radius_attr_dissector_t,const gchar*, guint, gboolean, const gchar*);
+static gboolean add_tlv(Radius_scanner_state_t* state, const gchar* name, const gchar* code, radius_attr_dissector_t type, const gchar* attr);
+static void add_value(Radius_scanner_state_t* state, const gchar* attrib_name, const gchar* repr, guint32 value);
+
+/*
+ * Sleazy hack to suppress compiler warnings in yy_fatal_error().
+ */
+#define YY_EXIT_FAILURE ((void)yyscanner, 2)
+
+/*
+ * Macros for the allocators, to discard the extra argument.
+ */
+#define Radius_alloc(size, yyscanner) (void *)malloc(size)
+#define Radius_realloc(ptr, size, yyscanner) (void *)realloc((char *)(ptr), (size))
+#define Radius_free(ptr, yyscanner) free((char *)ptr)
+
+%}
+
+/* Note: FreeRadius allows VENDOR, ATTRIBUTE and VALUE names to contain any non-blank character.
+ * Using a negated "blank character class" pattern below for those names fails for some reason
+ * so for now the patterns for each name type include those characters found for the corresponding
+ * name types in the FreeRadius dictionaries.
+ */
+
+%START WS_OUT VENDOR VENDOR_W_NAME ATTR ATTR_W_NAME ATTR_W_ID ATTR_W_TYPE VALUE VALUE_W_ATTR VALUE_W_NAME INCLUDE JUNK BEGIN_VENDOR BEGIN_VENDOR_FORMAT END_VENDOR VENDOR_W_ID VENDOR_W_FORMAT VENDOR_W_TYPE_OCTETS VENDOR_W_LENGTH_OCTETS VENDOR_W_CONTINUATION BEGIN_TLV END_TLV
+%%
+[:blank:] ;
+#[^\n]* ;
+
+<JUNK>.*\qn ;
+
+<WS_OUT>VENDOR { BEGIN VENDOR; }
+<WS_OUT>ATTRIBUTE { BEGIN ATTR; }
+<WS_OUT>VALUE { BEGIN VALUE; }
+<WS_OUT>\$INCLUDE { BEGIN INCLUDE; }
+<WS_OUT>BEGIN-VENDOR { BEGIN BEGIN_VENDOR; }
+<WS_OUT>END-VENDOR { BEGIN END_VENDOR; }
+<WS_OUT>BEGIN-TLV { BEGIN BEGIN_TLV; }
+<WS_OUT>END-TLV { BEGIN END_TLV; }
+
+<BEGIN_VENDOR>[0-9a-z_-]+ {
+ if (yyextra->current_vendor) {
+ g_free(yyextra->current_vendor);
+ }
+ yyextra->current_vendor = g_strdup(yytext);
+ BEGIN BEGIN_VENDOR_FORMAT;
+}
+<BEGIN_VENDOR_FORMAT>format=Extended-Vendor-Specific-[123456] {
+ if (strcmp(yytext, "format=Extended-Vendor-Specific-1") == 0) {
+ yyextra->current_vendor_evs_type = 241;
+ } else if(strcmp(yytext, "format=Extended-Vendor-Specific-2") == 0) {
+ yyextra->current_vendor_evs_type = 242;
+ } else if(strcmp(yytext, "format=Extended-Vendor-Specific-3") == 0) {
+ yyextra->current_vendor_evs_type = 243;
+ } else if(strcmp(yytext, "format=Extended-Vendor-Specific-4") == 0) {
+ yyextra->current_vendor_evs_type = 244;
+ } else if(strcmp(yytext, "format=Extended-Vendor-Specific-5") == 0) {
+ yyextra->current_vendor_evs_type = 245;
+ } else if(strcmp(yytext, "format=Extended-Vendor-Specific-6") == 0) {
+ yyextra->current_vendor_evs_type = 246;
+ }
+ BEGIN WS_OUT;
+}
+<BEGIN_VENDOR_FORMAT>\n {BEGIN WS_OUT;}
+
+<END_VENDOR>[^\n]* {
+ if (yyextra->current_vendor) {
+ g_free(yyextra->current_vendor);
+ yyextra->current_vendor = NULL;
+ }
+ yyextra->current_vendor_evs_type = 0;
+ BEGIN WS_OUT;
+}
+
+<BEGIN_TLV>[0-9a-z_-]+ {
+ if (yyextra->current_attr) {
+ g_free(yyextra->current_attr);
+ }
+ yyextra->current_attr = g_strdup(yytext);
+ BEGIN WS_OUT;
+}
+<END_TLV>[^\n]* {
+ if (yyextra->current_attr) {
+ g_free(yyextra->current_attr);
+ yyextra->current_attr = NULL;
+ }
+ BEGIN WS_OUT;
+}
+
+<VENDOR>[0-9a-z_-]+ {
+ yyextra->vendor_name = g_strdup(yytext);
+ yyextra->vendor_type_octets = 1;
+ yyextra->vendor_length_octets = 1;
+ yyextra->vendor_has_flags = FALSE;
+ BEGIN VENDOR_W_NAME;
+}
+<VENDOR_W_NAME>[0-9]+ {
+ yyextra->vendor_id = (guint32) strtoul(yytext,NULL,10);
+ BEGIN VENDOR_W_ID;
+}
+<VENDOR_W_NAME>0x[0-9a-f]+ {
+ yyextra->vendor_id = (guint32) strtoul(yytext,NULL,16);
+ BEGIN VENDOR_W_ID;
+}
+<VENDOR_W_ID>format= {
+ BEGIN VENDOR_W_FORMAT;
+}
+<VENDOR_W_FORMAT>[124] {
+ yyextra->vendor_type_octets = (guint) strtoul(yytext,NULL,10);
+ BEGIN VENDOR_W_TYPE_OCTETS;
+}
+<VENDOR_W_TYPE_OCTETS>,[012] {
+ yyextra->vendor_length_octets = (guint) strtoul(yytext+1,NULL,10);
+ BEGIN VENDOR_W_LENGTH_OCTETS;
+}
+<VENDOR_W_LENGTH_OCTETS>,c {
+ yyextra->vendor_has_flags = TRUE;
+ BEGIN VENDOR_W_CONTINUATION;
+}
+<VENDOR_W_FORMAT>\n |
+<VENDOR_W_TYPE_OCTETS>\n |
+<VENDOR_W_LENGTH_OCTETS>\n |
+<VENDOR_W_CONTINUATION>\n |
+<VENDOR_W_ID>\n {
+ add_vendor(yyextra, yyextra->vendor_name, yyextra->vendor_id, yyextra->vendor_type_octets, yyextra->vendor_length_octets, yyextra->vendor_has_flags);
+ g_free(yyextra->vendor_name);
+ BEGIN WS_OUT;
+}
+
+<ATTR>[0-9a-z_/.-]+ { yyextra->attr_name = g_strdup(yytext); yyextra->encrypted = 0; yyextra->has_tag = FALSE; BEGIN ATTR_W_NAME; }
+<ATTR_W_NAME>[0-9.]+ { yyextra->attr_id = g_strdup(yytext); BEGIN ATTR_W_ID;}
+<ATTR_W_NAME>0x[0-9a-f]+ { yyextra->attr_id = ws_strdup_printf("%u",(int)strtoul(yytext,NULL,16)); BEGIN ATTR_W_ID;}
+<ATTR_W_ID>integer { yyextra->attr_type = radius_integer; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>string { yyextra->attr_type = radius_string; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>octets { yyextra->attr_type = radius_octets; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ipaddr { yyextra->attr_type = radius_ipaddr; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ipv6addr { yyextra->attr_type = radius_ipv6addr; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ipv6prefix { yyextra->attr_type = radius_ipv6prefix; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ipxnet { yyextra->attr_type = radius_ipxnet; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>date { yyextra->attr_type = radius_date; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>abinary { yyextra->attr_type = radius_abinary; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ether { yyextra->attr_type = radius_ether; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>ifid { yyextra->attr_type = radius_ifid; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>byte { yyextra->attr_type = radius_integer; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>short { yyextra->attr_type = radius_integer; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>signed { yyextra->attr_type = radius_signed; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>combo-ip { yyextra->attr_type = radius_combo_ip; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>tlv { yyextra->attr_type = radius_tlv; BEGIN ATTR_W_TYPE; }
+<ATTR_W_ID>[0-9a-z_-]+ { yyextra->attr_type = radius_octets; BEGIN ATTR_W_TYPE; }
+<ATTR_W_TYPE>has_tag[,]? { yyextra->has_tag = TRUE; }
+<ATTR_W_TYPE>encrypt=[123][,]? { yyextra->encrypted = (guint) strtoul(yytext+8,NULL,10); }
+<ATTR_W_TYPE>[0-9a-z_-]+=([^\n]*) ;
+<ATTR_W_TYPE>[0-9a-z_-]+ {
+ /*
+ * Support for "ATTRIBUTE name oid type vendor", where the token
+ * following the type matches neither has_tag nor encrypt={1,2,3},
+ * but is a sequence of digits, lower-case letters, underscores,
+ * and hyphens.
+ *
+ * We mark this as a vendor-specific attribute (VSA), with the token
+ * following the type being the vendor name; this notation is deprecated
+ * in favor of BEGIN-VENDOR/END-VENDOR blocks.
+ */
+ gboolean attribute_ok;
+
+ yyextra->attr_vendor = g_strdup(yytext);
+ attribute_ok = add_attribute(yyextra, yyextra->attr_name, yyextra->attr_id, yyextra->attr_type, yyextra->attr_vendor, yyextra->encrypted, yyextra->has_tag, yyextra->current_attr);
+ g_free(yyextra->attr_id);
+ g_free(yyextra->attr_vendor);
+ g_free(yyextra->attr_name);
+ yyextra->attr_id = NULL;
+ yyextra->attr_vendor = NULL;
+ yyextra->attr_name = NULL;
+ if (attribute_ok)
+ BEGIN WS_OUT;
+ else
+ BEGIN JUNK;
+}
+<ATTR_W_TYPE>\n {
+ add_attribute(yyextra, yyextra->attr_name, yyextra->attr_id, yyextra->attr_type, yyextra->current_vendor, yyextra->encrypted, yyextra->has_tag, yyextra->current_attr);
+ g_free(yyextra->attr_id);
+ g_free(yyextra->attr_name);
+ yyextra->linenums[yyextra->include_stack_ptr]++;
+ yyextra->has_tag = FALSE;
+ yyextra->encrypted=FALSE;
+ BEGIN WS_OUT;
+}
+
+<VALUE>[0-9a-z_/-]+ { yyextra->attr_name = g_strdup(yytext); BEGIN VALUE_W_ATTR; }
+<VALUE_W_ATTR>[^[:blank:]]+ { yyextra->value_repr = g_strdup(yytext); BEGIN VALUE_W_NAME; }
+<VALUE_W_NAME>[0-9]+ { add_value(yyextra, yyextra->attr_name,yyextra->value_repr, (guint32) strtoul(yytext,NULL,10)); g_free(yyextra->attr_name); g_free(yyextra->value_repr); BEGIN WS_OUT;}
+<VALUE_W_NAME>0x[0-9a-f]+ { add_value(yyextra, yyextra->attr_name,yyextra->value_repr, (guint32) strtoul(yytext,NULL,16)); g_free(yyextra->attr_name); g_free(yyextra->value_repr); BEGIN WS_OUT;}
+
+<INCLUDE>[^[:blank:]\n]+ {
+ if ( yyextra->include_stack_ptr >= MAX_INCLUDE_DEPTH ) {
+ g_string_append_printf(yyextra->error, "$INCLUDE files nested too deeply\n");
+ yyterminate();
+ }
+
+ yyextra->include_stack[yyextra->include_stack_ptr++] = YY_CURRENT_BUFFER;
+
+ yyextra->fullpaths[yyextra->include_stack_ptr] = ws_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
+ yyextra->directory,yytext);
+
+ yyin = ws_fopen( yyextra->fullpaths[yyextra->include_stack_ptr], "r" );
+
+ if (!yyin) {
+ if (errno) {
+ g_string_append_printf(yyextra->error,
+ "Could not open file: '%s', error: %s\n",
+ yyextra->fullpaths[yyextra->include_stack_ptr],
+ g_strerror(errno) );
+ } else {
+ g_string_append_printf(yyextra->error,
+ "Could not open file: '%s', no errno\n",
+ yyextra->fullpaths[yyextra->include_stack_ptr]);
+ }
+ g_free(yyextra->fullpaths[yyextra->include_stack_ptr]);
+ yyextra->fullpaths[yyextra->include_stack_ptr] = NULL;
+ yyextra->include_stack_ptr--;
+ } else {
+ yyextra->linenums[yyextra->include_stack_ptr] = 1;
+ yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE, yyscanner), yyscanner);
+ }
+
+
+ BEGIN WS_OUT;
+}
+
+<<EOF>> {
+
+ fclose(yyin);
+ yyin = NULL;
+
+ if ( --yyextra->include_stack_ptr < 0 ) {
+ yyterminate();
+ } else {
+ g_free(yyextra->fullpaths[yyextra->include_stack_ptr+1]);
+ yyextra->fullpaths[yyextra->include_stack_ptr+1] = NULL;
+
+ Radius__delete_buffer(YY_CURRENT_BUFFER, yyscanner);
+ Radius__switch_to_buffer(yyextra->include_stack[yyextra->include_stack_ptr], yyscanner);
+ }
+
+ BEGIN WS_OUT;
+}
+
+\n { yyextra->linenums[yyextra->include_stack_ptr]++; BEGIN WS_OUT; }
+
+
+%%
+
+/*
+ * Turn diagnostics back on, so we check the code that we've written.
+ */
+DIAG_ON_FLEX()
+
+static void add_vendor(Radius_scanner_state_t* state, const gchar* name, guint32 id, guint type_octets, guint length_octets, gboolean has_flags) {
+ radius_vendor_info_t* v;
+
+ v = (radius_vendor_info_t *)g_hash_table_lookup(state->dict->vendors_by_id, GUINT_TO_POINTER(id));
+
+ if (!v) {
+ /*
+ * New vendor.
+ * Allocate a new entry and insert it into the by-ID and
+ * by-name hash tables.
+ */
+ v = g_new(radius_vendor_info_t,1);
+ v->attrs_by_id = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, free_radius_attr_info);
+ v->code = id;
+ v->ett = -1;
+ v->name = g_strdup(name);
+ v->type_octets = type_octets;
+ v->length_octets = length_octets;
+ v->has_flags = has_flags;
+
+ g_hash_table_insert(state->dict->vendors_by_id,GUINT_TO_POINTER(v->code),v);
+ g_hash_table_insert(state->dict->vendors_by_name, (gpointer) v->name, v);
+ } else {
+ /*
+ * This vendor is already in the table.
+ *
+ * Assume that the dictionary knows the 'ground truth' about
+ * the type/length/has_flags information and thus allow the
+ * dictionary to overwrite these values even for vendors that
+ * have already been loaded.
+ *
+ * XXX - this could be due to the vendor being in multiple
+ * dictionary files, rather than having been specially
+ * entered by the RADIUS dissector, as a side effect of
+ * specially entering an attribute; should we report vendors
+ * that appear in different dictionaries with different
+ * properties?
+ */
+ v->type_octets = type_octets;
+ v->length_octets = length_octets;
+ v->has_flags = has_flags;
+
+ /*
+ * Did the name change?
+ */
+ if (g_strcmp0(v->name, name) != 0) {
+ /*
+ * Yes. Remove the entry from the by-name hash table
+ * and re-insert it with the new name.
+ */
+ g_hash_table_remove(state->dict->vendors_by_name, (gpointer) v->name);
+ g_free((gpointer) v->name);
+ v->name = g_strdup(name);
+ g_hash_table_insert(state->dict->vendors_by_name, (gpointer) v->name, v);
+ }
+ }
+}
+
+static gboolean add_attribute(Radius_scanner_state_t* state, const gchar* name, const gchar* codestr, radius_attr_dissector_t type, const gchar* vendor, guint encrypted_flag, gboolean tagged, const gchar* attr) {
+ radius_attr_info_t* a;
+ GHashTable* by_id;
+ radius_attr_type_t code;
+ guint8 code0 = 0, code1 = 0;
+ gchar *dot, *buf = NULL;
+
+ if (attr){
+ return add_tlv(state, name, codestr, type, attr);
+ }
+
+ buf = g_strdup(codestr);
+ dot = strchr(codestr, '.');
+ if (dot)
+ *dot = '\0';
+ code0 = (guint8) strtoul(buf, NULL, 10);
+ if (dot)
+ code1 = (guint8) strtoul(dot + 1, NULL, 10);
+ g_free(buf);
+
+ memset(&code, 0, sizeof(code));
+ if (vendor) {
+ if (state->current_vendor_evs_type) {
+ code.u8_code[0] = (guint8) state->current_vendor_evs_type;
+ code.u8_code[1] = code0;
+ } else {
+ code.u8_code[0] = code0;
+ code.u8_code[1] = 0;
+ }
+
+ radius_vendor_info_t* v = (radius_vendor_info_t *)g_hash_table_lookup(state->dict->vendors_by_name,vendor);
+ if (! v) {
+ g_string_append_printf(state->error, "Vendor: '%s', does not exist in %s:%i \n", vendor, state->fullpaths[state->include_stack_ptr], state->linenums[state->include_stack_ptr] );
+ return FALSE;
+ } else {
+ by_id = v->attrs_by_id;
+ }
+ } else {
+ code.u8_code[0] = code0;
+ code.u8_code[1] = code1;
+
+ by_id = state->dict->attrs_by_id;
+ }
+
+ a=(radius_attr_info_t*)g_hash_table_lookup(by_id, GUINT_TO_POINTER(code.value));
+
+ if (!a) {
+ /*
+ * New attribute.
+ * Allocate a new entry and insert it into the by-ID and
+ * by-name hash tables.
+ */
+ a = g_new(radius_attr_info_t,1);
+ a->code = code;
+ a->name = g_strdup(name);
+ a->dissector = NULL;
+ a->encrypt = encrypted_flag;
+ a->tagged = tagged;
+ a->type = type;
+ a->vs = NULL;
+ a->hf = -1;
+ a->hf_alt = -1;
+ a->hf_tag = -1;
+ a->hf_len = -1;
+ a->ett = -1;
+ a->tlvs_by_id = NULL;
+ g_hash_table_insert(by_id, GUINT_TO_POINTER(code.value),a);
+ g_hash_table_insert(state->dict->attrs_by_name,(gpointer) (a->name),a);
+ } else {
+ /*
+ * This attribute is already in the table.
+ *
+ * Overwrite the encrypted flag, tagged property, and type;
+ * the other properties don't get set until after we've
+ * finished reading the dictionaries.
+ *
+ * XXX - this could be due to the attribute being in
+ * multiple dictionary files, rather than having been
+ * specially entered by the RADIUS dissector to give it
+ * a special dissection routine; should we report attributes
+ * that appear in different dictionaries with different
+ * properties?
+ */
+ a->encrypt = encrypted_flag;
+ a->tagged = tagged;
+ a->type = type;
+
+ /*
+ * Did the name change?
+ */
+ if (g_strcmp0(a->name, name) != 0) {
+ /*
+ * Yes. Steal the entry from the by-name hash table
+ * and re-insert it with the new name. (Don't
+ * remove it - that calls the free routine, which
+ * frees up the entry.)
+ */
+ g_hash_table_steal(state->dict->attrs_by_name, (gpointer) (a->name));
+ g_free((gpointer) a->name);
+ a->name = g_strdup(name);
+ g_hash_table_insert(state->dict->attrs_by_name, (gpointer) (a->name),a);
+ }
+ }
+ return TRUE;
+}
+
+static gboolean add_tlv(Radius_scanner_state_t* state, const gchar* name, const gchar* codestr, radius_attr_dissector_t type, const gchar* attr) {
+ radius_attr_info_t* a;
+ radius_attr_info_t* s;
+ radius_attr_type_t code;
+
+ a = (radius_attr_info_t*)g_hash_table_lookup(state->dict->attrs_by_name, attr);
+
+ if (! a) {
+ g_string_append_printf(state->error, "Attr: '%s', does not exist in %s:%i \n", attr, state->fullpaths[state->include_stack_ptr], state->linenums[state->include_stack_ptr]);
+ return FALSE;
+ }
+
+ if (type == radius_tlv) {
+ g_string_append_printf(state->error, "sub-TLV: '%s', sub-TLV's type is specified as tlv in %s:%i \n", name, state->fullpaths[state->include_stack_ptr], state->linenums[state->include_stack_ptr]);
+ return FALSE;
+ }
+
+
+ if (! a->tlvs_by_id) {
+ a->tlvs_by_id = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, free_radius_attr_info);
+ }
+
+ memset(&code, 0, sizeof(code));
+ code.u8_code[0] = (guint8) strtoul(codestr, NULL, 10);
+
+ s = (radius_attr_info_t*)g_hash_table_lookup(a->tlvs_by_id, GUINT_TO_POINTER(code.value));
+
+ if (!s) {
+ /*
+ * This TLV doesn't yet exist in this attribute's TLVs-by-ID
+ * hash table. Add it.
+ */
+ s = g_new(radius_attr_info_t,1);
+ s->name = g_strdup(name);
+ s->dissector = NULL;
+ s->code = code;
+ s->type = type;
+ s->encrypt = FALSE;
+ s->tagged = FALSE;
+ s->dissector = NULL;
+ s->vs = NULL;
+ s->hf = -1;
+ s->hf_alt = -1;
+ s->hf_tag = -1;
+ s->hf_len = -1;
+ s->ett = -1;
+ s->tlvs_by_id = NULL;
+
+ g_hash_table_insert(a->tlvs_by_id,GUINT_TO_POINTER(s->code.value),s);
+ g_hash_table_insert(state->dict->tlvs_by_name,(gpointer) (s->name),s);
+ }
+
+ /*
+ * If it *does* exist, leave it alone; there shouldn't be duplicate
+ * entries by name in the dictionaries (even if there might be
+ * multiple entries for a given attribute in the dictionaries, each
+ * one adding some TLV values), and we don't directly add entries
+ * for TLVs in the RADIUS dissector.
+ *
+ * XXX - report the duplicate entries?
+ */
+ return TRUE;
+}
+
+void add_value(Radius_scanner_state_t* state, const gchar* attrib_name, const gchar* repr, guint32 value) {
+ value_string v;
+ GArray* a = (GArray*)g_hash_table_lookup(state->value_strings,attrib_name);
+
+ if (! a) {
+ /* Ensure that the array is zero terminated. */
+ a = g_array_new(TRUE, TRUE, sizeof(value_string));
+ g_hash_table_insert(state->value_strings, g_strdup(attrib_name), a);
+ }
+
+ v.value = value;
+ v.strptr = g_strdup(repr);
+
+ g_array_append_val(a,v);
+}
+
+static void setup_tlvs(gpointer k _U_, gpointer v, gpointer p) {
+ radius_attr_info_t* s = (radius_attr_info_t*)v;
+ Radius_scanner_state_t* state = (Radius_scanner_state_t*)p;
+ gpointer key;
+
+ union {
+ GArray* a;
+ gpointer p;
+ } vs;
+
+ if (g_hash_table_lookup_extended(state->value_strings, s->name, &key, &vs.p)) {
+ g_hash_table_steal(state->value_strings, key);
+ s->vs = (value_string*)(void *)g_array_free(vs.a, FALSE);
+ g_free(key);
+ }
+}
+
+static void setup_attrs(gpointer k _U_, gpointer v, gpointer p) {
+ radius_attr_info_t* a = (radius_attr_info_t*)v;
+ Radius_scanner_state_t* state = (Radius_scanner_state_t*)p;
+ gpointer key;
+
+ union {
+ GArray* a;
+ gpointer p;
+ } vs;
+
+ if (g_hash_table_lookup_extended(state->value_strings, a->name, &key, &vs.p) ) {
+ g_hash_table_steal(state->value_strings, key);
+ a->vs = (value_string*)(void *)g_array_free(vs.a, FALSE);
+ g_free(key);
+ }
+
+ if (a->tlvs_by_id) {
+ g_hash_table_foreach(a->tlvs_by_id, setup_tlvs, p);
+ }
+}
+
+static void setup_vendors(gpointer k _U_, gpointer v, gpointer p) {
+ radius_vendor_info_t* vnd = (radius_vendor_info_t*)v;
+
+ g_hash_table_foreach(vnd->attrs_by_id,setup_attrs,p);
+}
+
+static void destroy_value_strings(gpointer v) {
+ value_string* vs = (value_string*)(void *)(((GArray*)v)->data);
+
+ for (;vs->strptr;vs++) {
+ g_free((void*)vs->strptr);
+ }
+
+ g_array_free((GArray*)v,TRUE);
+}
+
+gboolean radius_load_dictionary (radius_dictionary_t* d, gchar* dir, const gchar* filename, gchar** err_str) {
+ FILE *in;
+ yyscan_t scanner;
+ Radius_scanner_state_t state;
+ int i;
+
+ state.include_stack_ptr = 0;
+
+ state.dict = d;
+ state.value_strings = NULL;
+
+ state.attr_name = NULL;
+ state.attr_id = NULL;
+ state.attr_type = NULL;
+ state.attr_vendor = NULL;
+ state.vendor_name = NULL;
+ state.vendor_id = 0;
+ state.vendor_type_octets = 1;
+ state.vendor_length_octets = 1;
+ state.vendor_has_flags = FALSE;
+ state.value_repr = NULL;
+ state.encrypted = 0;
+ state.has_tag = FALSE;
+ state.current_vendor = NULL;
+ state.current_vendor_evs_type = 0;
+ state.current_attr = NULL;
+
+ state.directory = dir;
+
+ state.fullpaths[0] = ws_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
+ state.directory,filename);
+ state.linenums[0] = 1;
+ for (i = 1; i < MAX_INCLUDE_DEPTH; i++) {
+ state.fullpaths[i] = NULL;
+ state.linenums[i] = 1;
+ }
+
+ state.error = g_string_new("");
+
+ in = ws_fopen(state.fullpaths[0],"r");
+
+ if (!in) {
+ g_string_append_printf(state.error, "Could not open file: '%s', error: %s\n", state.fullpaths[0], g_strerror(errno));
+ g_free(state.fullpaths[0]);
+ *err_str = g_string_free(state.error,FALSE);
+ return FALSE;
+ }
+
+ state.value_strings = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, destroy_value_strings);
+
+ if (Radius_lex_init(&scanner) != 0) {
+ g_string_append_printf(state.error, "Can't initialize scanner: %s",
+ strerror(errno));
+ fclose(in);
+ g_free(state.fullpaths[0]);
+ *err_str = g_string_free(state.error,FALSE);
+ return FALSE;
+ }
+
+ Radius_set_in(in, scanner);
+
+ /* Associate the state with the scanner */
+ Radius_set_extra(&state, scanner);
+
+ Radius_lex(scanner);
+
+ Radius_lex_destroy(scanner);
+ /*
+ * XXX - can the lexical analyzer terminate without closing
+ * all open input files?
+ */
+
+ for (i = 0; i < MAX_INCLUDE_DEPTH; i++) {
+ g_free(state.fullpaths[i]);
+ }
+
+ g_hash_table_foreach(state.dict->attrs_by_id,setup_attrs,&state);
+ g_hash_table_foreach(state.dict->vendors_by_id,setup_vendors,&state);
+ g_hash_table_destroy(state.value_strings);
+
+ if (state.error->len > 0) {
+ *err_str = g_string_free(state.error,FALSE);
+ return FALSE;
+ } else {
+ *err_str = NULL;
+ g_string_free(state.error,TRUE);
+ return TRUE;
+ }
+}
+
+/*
+ * Editor modelines - https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */