/*
* dict.c Routines to read the dictionary file.
*
* Version: $Id: dict.c,v 1.50.2.4.2.18 2007/04/07 21:41:38 aland Exp $
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Copyright 2000 The FreeRADIUS server project
*/
static const char rcsid[] = "$Id: dict.c,v 1.50.2.4.2.18 2007/04/07 21:41:38 aland Exp $";
#include "autoconf.h"
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <unistd.h>
#include "missing.h"
#include "libradius.h"
#define DICT_VALUE_MAX_NAME_LEN (128)
#define DICT_VENDOR_MAX_NAME_LEN (128)
static lrad_hash_table_t *vendors_byname = NULL;
static lrad_hash_table_t *vendors_byvalue = NULL;
static lrad_hash_table_t *attributes_byname = NULL;
static lrad_hash_table_t *attributes_byvalue = NULL;
static lrad_hash_table_t *values_byvalue = NULL;
static lrad_hash_table_t *values_byname = NULL;
/*
* For faster HUP's, we cache the stat information for
* files we've $INCLUDEd
*/
typedef struct dict_stat_t {
struct dict_stat_t *next;
char *name;
time_t mtime;
} dict_stat_t;
static char *stat_root_dir = NULL;
static char *stat_root_file = NULL;
static dict_stat_t *stat_head = NULL;
static dict_stat_t *stat_tail = NULL;
typedef struct value_fixup_t {
char attrstr[40];
DICT_VALUE *dval;
struct value_fixup_t *next;
} value_fixup_t;
/*
* So VALUEs in the dictionary can have forward references.
*/
static value_fixup_t *value_fixup = NULL;
static const LRAD_NAME_NUMBER type_table[] = {
{ "string", PW_TYPE_STRING },
{ "integer", PW_TYPE_INTEGER },
{ "ipaddr", PW_TYPE_IPADDR },
{ "date", PW_TYPE_DATE },
{ "abinary", PW_TYPE_ABINARY },
{ "octets", PW_TYPE_OCTETS },
{ "ifid", PW_TYPE_IFID },
{ "ipv6addr", PW_TYPE_IPV6ADDR },
{ "ipv6prefix", PW_TYPE_IPV6PREFIX },
{ NULL, 0 }
};
/*
* Create the hash of the name.
*
* We copy the hash function here because it's substantially faster.
*/
#define FNV_MAGIC_INIT (0x811c9dc5)
#define FNV_MAGIC_PRIME (0x01000193)
static uint32_t dict_hashname(const char *name)
{
uint32_t hash = FNV_MAGIC_INIT;
const char *p;
for (p = name; *p != '\0'; p++) {
int c = *(const unsigned char *) p;
if (isalpha(c)) c = tolower(c);
hash *= FNV_MAGIC_PRIME;
hash ^= (uint32_t ) (c & 0xff);
}
return hash;
}
/*
* Hash callback functions.
*/
static uint32_t dict_attr_name_hash(const void *data)
{
return dict_hashname(((const DICT_ATTR *)data)->name);
}
static int dict_attr_name_cmp(const void *one, const void *two)
{
const DICT_ATTR *a = one;
const DICT_ATTR *b = two;
return strcasecmp(a->name, b->name);
}
static uint32_t dict_attr_value_hash(const void *data)
{
return lrad_hash(&((const DICT_ATTR *)data)->attr,
sizeof(((const DICT_ATTR *)data)->attr));
}
static int dict_attr_value_cmp(const void *one, const void *two)
{
const DICT_ATTR *a = one;
const DICT_ATTR *b = two;
return a->attr - b->attr;
}
static uint32_t dict_vendor_name_hash(const void *data)
{
return dict_hashname(((const DICT_VENDOR *)data)->name);
}
static int dict_vendor_name_cmp(const void *one, const void *two)
{
const DICT_VENDOR *a = one;
const DICT_VENDOR *b = two;
return strcasecmp(a->name, b->name);
}
static uint32_t dict_vendor_value_hash(const void *data)
{
return lrad_hash(&(((const DICT_VENDOR *)data)->vendorpec),
sizeof(((const DICT_VENDOR *)data)->vendorpec));
}
static int dict_vendor_value_cmp(const void *one, const void *two)
{
const DICT_VENDOR *a = one;
const DICT_VENDOR *b = two;
return a->vendorpec - b->vendorpec;
}
static uint32_t dict_value_name_hash(const void *data)
{
uint32_t hash;
const DICT_VALUE *dval = data;
hash = dict_hashname(dval->name);
return lrad_hash_update(&dval->attr, sizeof(dval->attr), hash);
}
static int dict_value_name_cmp(const void *one, const void *two)
{
int rcode;
const DICT_VALUE *a = one;
const DICT_VALUE *b = two;
rcode = a->attr - b->attr;
if (rcode != 0) return rcode;
return strcasecmp(a->name, b->name);
}
static uint32_t dict_value_value_hash(const void *data)
{
uint32_t hash;
const DICT_VALUE *dval = data;
hash = lrad_hash(&dval->attr, sizeof(dval->attr));
return lrad_hash_update(&dval->value, sizeof(dval->value), hash);
}
static int dict_value_value_cmp(const void *one, const void *two)
{
int rcode;
const DICT_VALUE *a = one;
const DICT_VALUE *b = two;
rcode = a->attr - b->attr;
if (rcode != 0) return rcode;
return a->value - b->value;
}
/*
* Free the list of stat buffers
*/
static void dict_stat_free(void)
{
dict_stat_t *this, *next;
free(stat_root_dir);
stat_root_dir = NULL;
free(stat_root_file);
stat_root_file = NULL;
if (!stat_head) {
stat_tail = NULL;
return;
}
for (this = stat_head; this != NULL; this = next) {
next = this->next;
free(this->name);
free(this);
}
stat_head = stat_tail = NULL;
}
/*
* Add an entry to the list of stat buffers.
*/
static void dict_stat_add(const char *name, const struct stat *stat_buf)
{
dict_stat_t *this;
this = malloc(sizeof(*this));
if (!this) return;
memset(this, 0, sizeof(*this));
this->name = strdup(name);
this->mtime = stat_buf->st_mtime;
if (!stat_head) {
stat_head = stat_tail = this;
} else {
stat_tail->next = this;
stat_tail = this;
}
}
/*
* See if any dictionaries have changed. If not, don't
* do anything.
*/
static int dict_stat_check(const char *root_dir, const char *root_file)
{
struct stat buf;
dict_stat_t *this;
if (!stat_root_dir) return 0;
if (!stat_root_file) return 0;
if (strcmp(root_dir, stat_root_dir) != 0) return 0;
if (strcmp(root_file, stat_root_file) != 0) return 0;
if (!stat_head) return 0; /* changed, reload */
for (this = stat_head; this != NULL; this = this->next) {
if (stat(this->name, &buf) < 0) return 0;
if (buf.st_mtime != this->mtime) return 0;
}
return 1;
}
/*
* Free the dictionary_attributes and dictionary_values lists.
*/
void dict_free(void)
{
/*
* Free the tables
*/
lrad_hash_table_free(vendors_byname);
lrad_hash_table_free(vendors_byvalue);
vendors_byname = NULL;
vendors_byvalue = NULL;
lrad_hash_table_free(attributes_byname);
lrad_hash_table_free(attributes_byvalue);
attributes_byname = NULL;
attributes_byvalue = NULL;
lrad_hash_table_free(values_byname);
lrad_hash_table_free(values_byvalue);
values_byname = NULL;
values_byvalue = NULL;
dict_stat_free();
}
/*
* Add vendor to the list.
*/
int dict_addvendor(const char *name, int value)
{
size_t length;
DICT_VENDOR *dv;
if (value >= (1 << 16)) {
librad_log("dict_addvendor: Cannot handle vendor ID larger than 65535");
return -1;
}
if ((length = strlen(name)) >= DICT_VENDOR_MAX_NAME_LEN) {
librad_log("dict_addvendor: vendor name too long");
return -1;
}
if ((dv = malloc(sizeof(*dv) + length)) == NULL) {
librad_log("dict_addvendor: out of memory");
return -1;
}
strcpy(dv->name, name);
dv->vendorpec = value;
dv->type = dv->length = 1; /* defaults */
if (!lrad_hash_table_insert(vendors_byname, dv)) {
DICT_VENDOR *old_dv;
old_dv = lrad_hash_table_finddata(vendors_byname, dv);
if (!old_dv) {
librad_log("dict_addvendor: Failed inserting vendor name %s", name);
return -1;
}
if (old_dv->vendorpec != dv->vendorpec) {
librad_log("dict_addvendor: Duplicate vendor name %s", name);
return -1;
}
/*
* Already inserted. Discard the duplicate entry.
*/
free(dv);
return 0;
}
/*
* Insert the SAME pointer (not free'd when this table is
* deleted), into another table.
*
* We want this behaviour because we want OLD names for
* the attributes to be read from the configuration
* files, but when we're printing them, (and looking up
* by value) we want to use the NEW name.
*/
if (!lrad_hash_table_replace(vendors_byvalue, dv)) {
librad_log("dict_addvendor: Failed inserting vendor %s",
name);
return -1;
}
return 0;
}
/*
* Add an attribute to the dictionary.
*/
int dict_addattr(const char *name, int vendor, int type, int value,
ATTR_FLAGS flags)
{
static int max_attr = 0;
DICT_ATTR *attr;
if (strlen(name) > (sizeof(attr->name) -1)) {
librad_log("dict_addattr: attribute name too long");
return -1;
}
/*
* If the value is '-1', that means use a pre-existing
* one (if it already exists). If one does NOT already exist,
* then create a new attribute, with a non-conflicting value,
* and use that.
*/
if (value == -1) {
if (dict_attrbyname(name)) {
return 0; /* exists, don't add it again */
}
value = ++max_attr;
} else if (vendor == 0) {
/*
* Update 'max_attr'
*/
if (value > max_attr) {
max_attr = value;
}
}
if (value < 0) {
librad_log("dict_addattr: ATTRIBUTE has invalid number (less than zero)");
return -1;
}
if (value >= 65536) {
librad_log("dict_addattr: ATTRIBUTE has invalid number (larger than 65535).");
return -1;
}
if (vendor) {
DICT_VENDOR *dv = dict_vendorbyvalue(vendor);
/*
* If the vendor isn't defined, die/
*/
if (!dv) {
librad_log("dict_addattr: Unknown vendor");
return -1;
}
/*
* With a few exceptions, attributes can only be
* 1..255. The check above catches the less than
* zero case.
*/
if ((dv->type == 1) && (value >= 256)) {
librad_log("dict_addattr: ATTRIBUTE has invalid number (larger than 255).");
return -1;
} /* else 256..65535 are allowed */
}
/*
* Create a new attribute for the list
*/
if ((attr = malloc(sizeof(*attr))) == NULL) {
librad_log("dict_addattr: out of memory");
return -1;
}
strcpy(attr->name, name);
attr->attr = value;
attr->attr |= (vendor << 16); /* FIXME: hack */
attr->type = type;
attr->flags = flags;
attr->vendor = vendor;
/*
* Insert the attribute, only if it's not a duplicate.
*/
if (!lrad_hash_table_insert(attributes_byname, attr)) {
DICT_ATTR *a;
/*
* If the attribute has identical number, then
* ignore the duplicate.
*/
a = lrad_hash_table_finddata(attributes_byname, attr);
if (a && (strcasecmp(a->name, attr->name) == 0)) {
if (a->attr != attr->attr) {
librad_log("dict_addattr: Duplicate attribute name %s", name);
free(attr);
return -1;
}
/*
* Same name, same vendor, same attr,
* maybe the flags and/or type is
* different. Let the new value
* over-ride the old one.
*/
}
lrad_hash_table_delete(attributes_byvalue, a);
if (!lrad_hash_table_replace(attributes_byname, attr)) {
librad_log("dict_addattr: Internal error storing attribute %s", name);
free(attr);
return -1;
}
}
/*
* Insert the SAME pointer (not free'd when this entry is
* deleted), into another table.
*
* We want this behaviour because we want OLD names for
* the attributes to be read from the configuration
* files, but when we're printing them, (and looking up
* by value) we want to use the NEW name.
*/
if (!lrad_hash_table_replace(attributes_byvalue, attr)) {
librad_log("dict_addattr: Failed inserting attribute name %s", name);
return -1;
}
return 0;
}
/*
* Add a value for an attribute to the dictionary.
*/
int dict_addvalue(const char *namestr, const char *attrstr, int value)
{
size_t length;
DICT_ATTR *dattr;
DICT_VALUE *dval;
if ((length = strlen(namestr)) >= DICT_VALUE_MAX_NAME_LEN) {
librad_log("dict_addvalue: value name too long");
return -1;
}
if ((dval = malloc(sizeof(*dval) + length)) == NULL) {
librad_log("dict_addvalue: out of memory");
return -1;
}
memset(dval, 0, sizeof(*dval));
strcpy(dval->name, namestr);
dval->value = value;
/*
* Remember which attribute is associated with this
* value, if possible.
*/
dattr = dict_attrbyname(attrstr);
if (dattr) {
dval->attr = dattr->attr;
/*
* Octets is allowed as a work-around for the
* fact that branch_1_1 doesn't have BYTE or SHORT
*/
if ((dattr->type != PW_TYPE_INTEGER) &&
(dattr->type != PW_TYPE_OCTETS)) {
free(dval);
librad_log("dict_addvalue: VALUEs can only be defined for'integer' types");
return -1;
}
} else {
value_fixup_t *fixup;
fixup = (value_fixup_t *) malloc(sizeof(*fixup));
if (!fixup) {
free(dval);
librad_log("dict_addvalue: out of memory");
return -1;
}
memset(fixup, 0, sizeof(*fixup));
strNcpy(fixup->attrstr, attrstr, sizeof(fixup->attrstr));
fixup->dval = dval;
/*
* Insert to the head of the list.
*/
fixup->next = value_fixup;
value_fixup = fixup;
return 0;
}
/*
* Add the value into the dictionary.
*/
if (!lrad_hash_table_insert(values_byname, dval)) {
if (dattr) {
DICT_VALUE *old;
/*
* Suppress duplicates with the same
* name and value. There are lots in
* dictionary.ascend.
*/
old = dict_valbyname(dattr->attr, namestr);
if (old && (old->value == dval->value)) {
free(dval);
return 0;
}
}
free(dval);
librad_log("dict_addvalue: Duplicate value name %s for attribute %s", namestr, attrstr);
return -1;
}
/*
* There are multiple VALUE's, keyed by attribute, so we
* take care of that here.
*/
if (!lrad_hash_table_replace(values_byvalue, dval)) {
librad_log("dict_addvalue: Failed inserting value %s",
namestr);
return -1;
}
return 0;
}
/*
* Process the ATTRIBUTE command
*/
static int process_attribute(const char* fn, const int line,
const int block_vendor, char **argv,
int argc)
{
int vendor = 0;
int value;
int type;
char *s, *c;
ATTR_FLAGS flags;
if ((argc < 3) || (argc > 4)) {
librad_log("dict_init: %s[%d]: invalid ATTRIBUTE line",
fn, line);
return -1;
}
/*
* Validate all entries
*/
if (!isdigit((int) argv[1][0])) {
librad_log("dict_init: %s[%d]: invalid value", fn, line);
return -1;
}
sscanf(argv[1], "%i", &value);
/*
* find the type of the attribute.
*/
type = lrad_str2int(type_table, argv[2], -1);
if (type < 0) {
librad_log("dict_init: %s[%d]: invalid type \"%s\"",
fn, line, argv[2]);
return -1;
}
/*
* Only look up the vendor if the string
* is non-empty.
*/
memset(&flags, 0, sizeof(flags));
if (argc == 4) {
s = strtok(argv[3], ",");
while (s) {
if (strcmp(s, "has_tag") == 0 ||
strcmp(s, "has_tag=1") == 0) {
/* Boolean flag, means this is a
tagged attribute */
flags.has_tag = 1;
} else if (strncmp(s, "encrypt=", 8) == 0) {
/* Encryption method, defaults to 0 (none).
Currently valid is just type 2,
Tunnel-Password style, which can only
be applied to strings. */
flags.encrypt = strtol(s + 8, &c, 0);
if (*c) {
librad_log( "dict_init: %s[%d] invalid option %s",
fn, line, s);
return -1;
}
} else {
/* Must be a vendor 'flag'... */
if (strncmp(s, "vendor=", 7) == 0) {
/* New format */
s += 7;
}
vendor = dict_vendorbyname(s);
if (!vendor) {
librad_log( "dict_init: %s[%d]: unknown vendor %s",
fn, line, s);
return -1;
}
if (block_vendor && argv[3][0] &&
(block_vendor != vendor)) {
librad_log("dict_init: %s[%d]: mismatched vendor %s within BEGIN-VENDOR/END-VENDOR block",
fn, line, argv[3]);
return -1;
}
}
s = strtok(NULL, ",");
}
}
if (block_vendor) vendor = block_vendor;
/*
* Special checks for tags, they make our life much more
* difficult.
*/
if (flags.has_tag) {
/*
* Only string, octets, and integer can be tagged.
*/
switch (type) {
case PW_TYPE_STRING:
case PW_TYPE_INTEGER:
break;
default:
librad_log("dict_init: %s[%d]: Attributes of type %s cannot be tagged.",
fn, line,
lrad_int2str(type_table, type, "?Unknown?"));
return -1;
}
}
/*
* Add it in.
*/
if (dict_addattr(argv[0], vendor, type, value, flags) < 0) {
librad_log("dict_init: %s[%d]: %s",
fn, line, librad_errstr);
return -1;
}
return 0;
}
/*
* Process the VALUE command
*/
static int process_value(const char* fn, const int line, char **argv,
int argc)
{
int value;
if (argc != 3) {
librad_log("dict_init: %s[%d]: invalid VALUE line",
fn, line);
return -1;
}
/*
* For Compatibility, skip "Server-Config"
*/
if (strcasecmp(argv[0], "Server-Config") == 0)
return 0;
/*
* Validate all entries
*/
if (!isdigit((int) argv[2][0])) {
librad_log("dict_init: %s[%d]: invalid value",
fn, line);
return -1;
}
sscanf(argv[2], "%i", &value);
if (dict_addvalue(argv[1], argv[0], value) < 0) {
librad_log("dict_init: %s[%d]: %s",
fn, line, librad_errstr);
return -1;
}
return 0;
}
/*
* Process the VENDOR command
*/
static int process_vendor(const char* fn, const int line, char **argv,
int argc)
{
int value;
const char *format = NULL;
if ((argc < 2) || (argc > 3)) {
librad_log( "dict_init: %s[%d] invalid VENDOR entry",
fn, line);
return -1;
}
/*
* Validate all entries
*/
if (!isdigit((int) argv[1][0])) {
librad_log("dict_init: %s[%d]: invalid value",
fn, line);
return -1;
}
value = atoi(argv[1]);
/* Create a new VENDOR entry for the list */
if (dict_addvendor(argv[0], value) < 0) {
librad_log("dict_init: %s[%d]: %s",
fn, line, librad_errstr);
return -1;
}
/*
* Look for a format statement
*/
if (argc == 3) {
format = argv[2];
} else if (value == VENDORPEC_USR) { /* catch dictionary screw-ups */
format = "format=4,0";
} else if (value == VENDORPEC_LUCENT) {
format = "format=2,1";
} else if (value == VENDORPEC_STARENT) {
format = "format=2,2";
} /* else no fixups to do */
if (format) {
int type, length;
const char *p;
DICT_VENDOR *dv;
if (strncasecmp(format, "format=", 7) != 0) {
librad_log("dict_init: %s[%d]: Invalid format for VENDOR. Expected \"format=\", got \"%s\"",
fn, line, format);
return -1;
}
p = format + 7;
if ((strlen(p) != 3) ||
!isdigit((int) p[0]) ||
(p[1] != ',') ||
!isdigit((int) p[2])) {
librad_log("dict_init: %s[%d]: Invalid format for VENDOR. Expected text like \"1,1\", got \"%s\"",
fn, line, p);
return -1;
}
type = (int) (p[0] - '0');
length = (int) (p[2] - '0');
dv = dict_vendorbyvalue(value);
if (!dv) {
librad_log("dict_init: %s[%d]: Failed adding format for VENDOR",
fn, line);
return -1;
}
if ((type != 1) && (type != 2) && (type != 4)) {
librad_log("dict_init: %s[%d]: invalid type value %d for VENDOR",
fn, line, type);
return -1;
}
if ((length != 0) && (length != 1) && (length != 2)) {
librad_log("dict_init: %s[%d]: invalid length value %d for VENDOR",
fn, line, length);
return -1;
}
dv->type = type;
dv->length = length;
}
return 0;
}
/*
* String split routine. Splits an input string IN PLACE
* into pieces, based on spaces.
*/
static int str2argv(char *str, char **argv, int max_argc)
{
int argc = 0;
while (*str) {
if (argc >= max_argc) return argc;
/*
* Chop out comments early.
*/
if (*str == '#') {
*str = '\0';
break;
}
while ((*str == ' ') ||
(*str == '\t') ||
(*str == '\r') ||
(*str == '\n')) *(str++) = '\0';
if (!*str) return argc;
argv[argc] = str;
argc++;
while (*str &&
(*str != ' ') &&
(*str != '\t') &&
(*str != '\r') &&
(*str != '\n')) str++;
}
return argc;
}
#define MAX_ARGV (16)
/*
* Initialize the dictionary.
*/
static int my_dict_init(const char *dir, const char *fn,
const char *src_file, int src_line)
{
FILE *fp;
char dirtmp[256];
char buf[256];
char *p;
int line = 0;
int vendor;
int block_vendor;
struct stat statbuf;
char *argv[MAX_ARGV];
int argc;
if (!dir) {
librad_log("dict_init: No directory specified");
return -1;
}
if ((strlen(fn) >= sizeof(dirtmp) / 2) ||
(strlen(dir) >= sizeof(dirtmp) / 2)) {
librad_log("dict_init: filename name too long");
return -1;
}
/*
* First see if fn is relative to dir. If so, create
* new filename. If not, remember the absolute dir.
*/
if ((p = strrchr(fn, '/')) != NULL) {
strcpy(dirtmp, fn);
dirtmp[p - fn] = 0;
dir = dirtmp;
} else if (dir[0] && strcmp(dir, ".") != 0) {
snprintf(dirtmp, sizeof(dirtmp), "%s/%s", dir, fn);
fn = dirtmp;
}
if ((fp = fopen(fn, "r")) == NULL) {
if (!src_file) {
librad_log("dict_init: Couldn't open dictionary \"%s\": %s",
fn, strerror(errno));
} else {
librad_log("dict_init: %s[%d]: Couldn't open dictionary \"%s\": %s",
src_file, src_line, fn, strerror(errno));
}
return -1;
}
stat(fn, &statbuf); /* fopen() guarantees this will succeed */
if (!S_ISREG(statbuf.st_mode)) {
fclose(fp);
librad_log("dict_init: Dictionary \"%s\" is not a regular file",
fn);
return -1;
}
/*
* Globally writable dictionaries means that users can control
* the server configuration with little difficulty.
*/
if ((statbuf.st_mode & S_IWOTH) != 0) {
fclose(fp);
librad_log("dict_init: Dictionary \"%s\" is globally writable. Refusing to start due to insecure configuration.",
fn);
return -1;
}
dict_stat_add(fn, &statbuf);
/*
* Seed the random pool with data.
*/
lrad_rand_seed(&statbuf, sizeof(statbuf));
block_vendor = 0;
while (fgets(buf, sizeof(buf), fp) != NULL) {
line++;
if (buf[0] == '#' || buf[0] == 0 ||
buf[0] == '\n' || buf[0] == '\r')
continue;
/*
* Comment characters should NOT be appearing anywhere but
* as start of a comment;
*/
p = strchr(buf, '#');
if (p) *p = '\0';
argc = str2argv(buf, argv, MAX_ARGV);
if (argc == 0) continue;
if (argc == 1) {
librad_log( "dict_init: %s[%d] invalid entry",
fn, line);
fclose(fp);
return -1;
}
if (0) {
int i;
fprintf(stderr, "ARGC = %d\n",argc);
for (i = 0; i < argc; i++) {
fprintf(stderr, "\t%s\n", argv[i]);
}
}
/*
* See if we need to import another dictionary.
*/
if (strcasecmp(argv[0], "$INCLUDE") == 0) {
if (my_dict_init(dir, argv[1], fn, line) < 0) {
fclose(fp);
return -1;
}
continue;
} /* $INCLUDE */
/*
* Perhaps this is an attribute.
*/
if (strcasecmp(argv[0], "ATTRIBUTE") == 0) {
if (process_attribute(fn, line, block_vendor,
argv + 1, argc - 1) == -1) {
fclose(fp);
return -1;
}
continue;
}
/*
* Process VALUE lines.
*/
if (strcasecmp(argv[0], "VALUE") == 0) {
if (process_value(fn, line,
argv + 1, argc - 1) == -1) {
fclose(fp);
return -1;
}
continue;
}
/*
* Process VENDOR lines.
*/
if (strcasecmp(argv[0], "VENDOR") == 0) {
if (process_vendor(fn, line,
argv + 1, argc - 1) == -1) {
fclose(fp);
return -1;
}
continue;
}
if (strcasecmp(argv[0], "BEGIN-VENDOR") == 0) {
if (argc != 2) {
librad_log(
"dict_init: %s[%d] invalid BEGIN-VENDOR entry",
fn, line);
fclose(fp);
return -1;
}
vendor = dict_vendorbyname(argv[1]);
if (!vendor) {
librad_log(
"dict_init: %s[%d]: unknown vendor %s",
fn, line, argv[1]);
fclose(fp);
return -1;
}
block_vendor = vendor;
continue;
} /* BEGIN-VENDOR */
if (strcasecmp(argv[0], "END-VENDOR") == 0) {
if (argc != 2) {
librad_log(
"dict_init: %s[%d] invalid END-VENDOR entry",
fn, line);
fclose(fp);
return -1;
}
vendor = dict_vendorbyname(argv[1]);
if (!vendor) {
librad_log(
"dict_init: %s[%d]: unknown vendor %s",
fn, line, argv[1]);
fclose(fp);
return -1;
}
if (vendor != block_vendor) {
librad_log(
"dict_init: %s[%d]: END-VENDOR %s does not match any previous BEGIN-VENDOR",
fn, line, argv[1]);
fclose(fp);
return -1;
}
block_vendor = 0;
continue;
} /* END-VENDOR */
/*
* Any other string: We don't recognize it.
*/
librad_log(
"dict_init: %s[%d] invalid keyword \"%s\"",
fn, line, argv[0]);
fclose(fp);
return -1;
}
fclose(fp);
return 0;
}
/*
* Empty callback for hash table initialization.
*/
static int null_callback(void *ctx, void *data)
{
ctx = ctx; /* -Wunused */
data = data; /* -Wunused */
return 0;
}
/*
* Initialize the directory, then fix the attr member of
* all attributes.
*/
int dict_init(const char *dir, const char *fn)
{
if (!dir) return -1;
/*
* Check if we need to change anything. If not, don't do
* anything.
*/
if (dict_stat_check(dir, fn)) {
return 0;
}
/*
* Free the dictionaries, and the stat cache.
*/
dict_free();
stat_root_dir = strdup(dir);
stat_root_file = strdup(fn);
/*
* Create the table of vendor by name. There MAY NOT
* be multiple vendors of the same name.
*
* Each vendor is malloc'd, so the free function is free.
*/
vendors_byname = lrad_hash_table_create(dict_vendor_name_hash,
dict_vendor_name_cmp,
free);
if (!vendors_byname) {
return -1;
}
/*
* Create the table of vendors by value. There MAY
* be vendors of the same value. If there are, we
* pick the latest one.
*/
vendors_byvalue = lrad_hash_table_create(dict_vendor_value_hash,
dict_vendor_value_cmp,
NULL);
if (!vendors_byvalue) {
return -1;
}
/*
* Create the table of attributes by name. There MAY NOT
* be multiple attributes of the same name.
*
* Each attribute is malloc'd, so the free function is free.
*/
attributes_byname = lrad_hash_table_create(dict_attr_name_hash,
dict_attr_name_cmp,
free);
if (!attributes_byname) {
return -1;
}
/*
* Create the table of attributes by value. There MAY
* be attributes of the same value. If there are, we
* pick the latest one.
*/
attributes_byvalue = lrad_hash_table_create(dict_attr_value_hash,
dict_attr_value_cmp,
NULL);
if (!attributes_byvalue) {
return -1;
}
values_byname = lrad_hash_table_create(dict_value_name_hash,
dict_value_name_cmp,
free);
if (!values_byname) {
return -1;
}
values_byvalue = lrad_hash_table_create(dict_value_value_hash,
dict_value_value_cmp,
NULL);
if (!values_byvalue) {
return -1;
}
value_fixup = NULL; /* just to be safe. */
if (my_dict_init(dir, fn, NULL, 0) < 0)
return -1;
if (value_fixup) {
DICT_ATTR *a;
value_fixup_t *this, *next;
for (this = value_fixup; this != NULL; this = next) {
next = this->next;
a = dict_attrbyname(this->attrstr);
if (!a) {
librad_log(
"dict_init: No ATTRIBUTE \"%s\" defined for VALUE \"%s\"",
this->attrstr, this->dval->name);
return -1; /* leak, but they should die... */
}
this->dval->attr = a->attr;
/*
* Add the value into the dictionary.
*/
if (!lrad_hash_table_replace(values_byname,
this->dval)) {
librad_log("dict_addvalue: Duplicate value name %s for attribute %s", this->dval->name, a->name);
return -1;
}
/*
* Allow them to use the old name, but
* prefer the new name when printing
* values.
*/
if (!lrad_hash_table_finddata(values_byvalue, this->dval)) {
lrad_hash_table_replace(values_byvalue,
this->dval);
}
free(this);
/*
* Just so we don't lose track of things.
*/
value_fixup = next;
}
}
/*
* Walk over all of the hash tables to ensure they're
* initialized. We do this because the threads may perform
* lookups, and we don't want multi-threaded re-ordering
* of the table entries. That would be bad.
*/
lrad_hash_table_walk(vendors_byname, null_callback, NULL);
lrad_hash_table_walk(vendors_byvalue, null_callback, NULL);
lrad_hash_table_walk(attributes_byname, null_callback, NULL);
lrad_hash_table_walk(attributes_byvalue, null_callback, NULL);
lrad_hash_table_walk(values_byvalue, null_callback, NULL);
lrad_hash_table_walk(values_byname, null_callback, NULL);
return 0;
}
/*
* Get an attribute by its numerical value.
*/
DICT_ATTR *dict_attrbyvalue(int attr)
{
DICT_ATTR dattr;
dattr.attr = attr;
return lrad_hash_table_finddata(attributes_byvalue, &dattr);
}
/*
* Get an attribute by its name.
*/
DICT_ATTR *dict_attrbyname(const char *name)
{
DICT_ATTR dattr;
if (!name) return NULL;
strNcpy(dattr.name, name, sizeof(dattr.name));
return lrad_hash_table_finddata(attributes_byname, &dattr);
}
/*
* Associate a value with an attribute and return it.
*/
DICT_VALUE *dict_valbyattr(int attr, int value)
{
DICT_VALUE dval;
dval.attr = attr;
dval.value = value;
return lrad_hash_table_finddata(values_byvalue, &dval);
}
/*
* Get a value by its name, keyed off of an attribute.
*/
DICT_VALUE *dict_valbyname(int attr, const char *name)
{
DICT_VALUE *dv;
uint32_t buffer[(sizeof(*dv) + DICT_VALUE_MAX_NAME_LEN + 3)/4];
if (!name) return NULL;
dv = (DICT_VALUE *) buffer;
dv->attr = attr;
strNcpy(dv->name, name, DICT_VALUE_MAX_NAME_LEN);
return lrad_hash_table_finddata(values_byname, dv);
}
/*
* Get the vendor PEC based on the vendor name
*
* This is efficient only for small numbers of vendors.
*/
int dict_vendorbyname(const char *name)
{
DICT_VENDOR *dv;
uint32_t buffer[(sizeof(*dv) + DICT_VENDOR_MAX_NAME_LEN + 3)/4];
if (!name) return 0;
dv = (DICT_VENDOR *) buffer;
strNcpy(dv->name, name, DICT_VENDOR_MAX_NAME_LEN);
dv = lrad_hash_table_finddata(vendors_byname, dv);
if (!dv) return 0;
return dv->vendorpec;
}
/*
* Return the vendor struct based on the PEC.
*/
DICT_VENDOR *dict_vendorbyvalue(int vendorpec)
{
DICT_VENDOR dv;
dv.vendorpec = vendorpec;
return lrad_hash_table_finddata(vendors_byvalue, &dv);
}
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