int read_client_conf_file (const char *name, struct interface_info *ip,
struct client_config *client)
{
int file;
struct parse *cfile;
const char *val;
int token;
isc_result_t status;
if ((file = open (name, O_RDONLY)) < 0)
return uerr2isc (errno);
cfile = (struct parse *)0;
new_parse (&cfile, file, (char *)0, 0, path_dhclient_conf, 0);
do {
token = peek_token (&val, (unsigned *)0, cfile);
if (token == END_OF_FILE)
break;
parse_client_statement (cfile, ip, client);
} while (1);
token = next_token (&val, (unsigned *)0, cfile);
status = (cfile -> warnings_occurred
? ISC_R_BADPARSE
: ISC_R_SUCCESS);
end_parse (&cfile);
return status;
}
/*
* client-conf-file :== client-declarations EOF
* client-declarations :== <nil>
* | client-declaration
* | client-declarations client-declaration
*/
int
read_client_conf(void)
{
FILE *cfile;
int token;
new_parse(path_dhclient_conf);
/* Set some defaults... */
config->link_timeout = 30;
config->timeout = 60;
config->select_interval = 0;
config->reboot_timeout = 10;
config->retry_interval = 300;
config->backoff_cutoff = 15;
config->initial_interval = 3;
config->bootp_policy = ACCEPT;
config->script_name = _PATH_DHCLIENT_SCRIPT;
config->requested_options
[config->requested_option_count++] = DHO_SUBNET_MASK;
config->requested_options
[config->requested_option_count++] = DHO_BROADCAST_ADDRESS;
config->requested_options
[config->requested_option_count++] = DHO_TIME_OFFSET;
config->requested_options
[config->requested_option_count++] = DHO_CLASSLESS_ROUTES;
config->requested_options
[config->requested_option_count++] = DHO_ROUTERS;
config->requested_options
[config->requested_option_count++] = DHO_DOMAIN_NAME;
config->requested_options
[config->requested_option_count++] = DHO_DOMAIN_NAME_SERVERS;
config->requested_options
[config->requested_option_count++] = DHO_HOST_NAME;
if ((cfile = fopen(path_dhclient_conf, "r")) != NULL) {
do {
token = peek_token(NULL, cfile);
if (token == EOF)
break;
parse_client_statement(cfile);
} while (1);
token = next_token(NULL, cfile); /* Clear the peek buffer */
fclose(cfile);
}
return (!warnings_occurred);
}
/*
* interface-declaration :==
* INTERFACE string LBRACE client-declarations RBRACE
*/
void
parse_interface_declaration(FILE *cfile, struct client_config *outer_config)
{
int token;
char *val;
struct interface_info *ip;
token = next_token(&val, cfile);
if (token != STRING) {
parse_warn("expecting interface name (in quotes).");
skip_to_semi(cfile);
return;
}
ip = interface_or_dummy(val);
if (!ip->client)
make_client_state(ip);
if (!ip->client->config)
make_client_config(ip, outer_config);
token = next_token(&val, cfile);
if (token != LBRACE) {
parse_warn("expecting left brace.");
skip_to_semi(cfile);
return;
}
do {
token = peek_token(&val, cfile);
if (token == EOF) {
parse_warn("unterminated interface declaration.");
return;
}
if (token == RBRACE)
break;
parse_client_statement(cfile, ip, ip->client->config);
} while (1);
token = next_token(&val, cfile);
}
/*
* interface-declaration :==
* INTERFACE string LBRACE client-declarations RBRACE
*/
void
parse_interface_declaration(FILE *cfile)
{
char *val;
int token;
token = next_token(&val, cfile);
if (token != TOK_STRING) {
parse_warn("expecting interface name (in quotes).");
skip_to_semi(cfile);
return;
}
if (strcmp(ifi->name, val) != 0) {
skip_to_semi(cfile);
return;
}
token = next_token(&val, cfile);
if (token != '{') {
parse_warn("expecting left brace.");
skip_to_semi(cfile);
return;
}
do {
token = peek_token(&val, cfile);
if (token == EOF) {
parse_warn("unterminated interface declaration.");
return;
}
if (token == '}')
break;
parse_client_statement(cfile);
} while (1);
token = next_token(&val, cfile);
}
isc_result_t read_client_conf ()
{
struct client_config *config;
struct client_state *state;
struct interface_info *ip;
isc_result_t status;
/* Set up the initial dhcp option universe. */
initialize_common_option_spaces ();
/* Initialize the top level client configuration. */
memset (&top_level_config, 0, sizeof top_level_config);
/* Set some defaults... */
top_level_config.timeout = 60;
top_level_config.select_interval = 0;
top_level_config.reboot_timeout = 10;
top_level_config.retry_interval = 300;
top_level_config.backoff_cutoff = 15;
top_level_config.initial_interval = 3;
top_level_config.bootp_policy = P_ACCEPT;
top_level_config.script_name = path_dhclient_script;
top_level_config.requested_options = default_requested_options;
top_level_config.omapi_port = -1;
top_level_config.do_forward_update = 1;
group_allocate (&top_level_config.on_receipt, MDL);
if (!top_level_config.on_receipt)
log_fatal ("no memory for top-level on_receipt group");
group_allocate (&top_level_config.on_transmission, MDL);
if (!top_level_config.on_transmission)
log_fatal ("no memory for top-level on_transmission group");
status = read_client_conf_file (path_dhclient_conf,
(struct interface_info *)0,
&top_level_config);
if (status != ISC_R_SUCCESS) {
;
#ifdef LATER
/* Set up the standard name service updater routine. */
parse = (struct parse *)0;
status = new_parse (&parse, -1, default_client_config,
(sizeof default_client_config) - 1,
"default client configuration", 0);
if (status != ISC_R_SUCCESS)
log_fatal ("can't begin default client config!");
do {
token = peek_token (&val, (unsigned *)0, cfile);
if (token == END_OF_FILE)
break;
parse_client_statement (cfile,
(struct interface_info *)0,
&top_level_config);
} while (1);
end_parse (&parse);
#endif
}
/* Set up state and config structures for clients that don't
have per-interface configuration statements. */
config = (struct client_config *)0;
for (ip = interfaces; ip; ip = ip -> next) {
if (!ip -> client) {
ip -> client = (struct client_state *)
dmalloc (sizeof (struct client_state), MDL);
if (!ip -> client)
log_fatal ("no memory for client state.");
memset (ip -> client, 0, sizeof *(ip -> client));
ip -> client -> interface = ip;
}
if (!ip -> client -> config) {
if (!config) {
config = (struct client_config *)
dmalloc (sizeof (struct client_config),
MDL);
if (!config)
log_fatal ("no memory for client config.");
memcpy (config, &top_level_config,
sizeof top_level_config);
}
ip -> client -> config = config;
}
}
return status;
}
isc_result_t read_client_conf ()
{
struct client_config *config;
struct interface_info *ip;
isc_result_t status;
unsigned code;
/* Initialize the default request list. */
memset(default_requested_options, 0, sizeof(default_requested_options));
/* 1 */
code = DHO_SUBNET_MASK;
option_code_hash_lookup(&default_requested_options[0],
dhcp_universe.code_hash, &code, 0, MDL);
/* 2 */
code = DHO_BROADCAST_ADDRESS;
option_code_hash_lookup(&default_requested_options[1],
dhcp_universe.code_hash, &code, 0, MDL);
/* 3 */
code = DHO_TIME_OFFSET;
option_code_hash_lookup(&default_requested_options[2],
dhcp_universe.code_hash, &code, 0, MDL);
/* 4 */
code = DHO_ROUTERS;
option_code_hash_lookup(&default_requested_options[3],
dhcp_universe.code_hash, &code, 0, MDL);
/* 5 */
code = DHO_DOMAIN_NAME;
option_code_hash_lookup(&default_requested_options[4],
dhcp_universe.code_hash, &code, 0, MDL);
/* 6 */
code = DHO_DOMAIN_NAME_SERVERS;
option_code_hash_lookup(&default_requested_options[5],
dhcp_universe.code_hash, &code, 0, MDL);
/* 7 */
code = DHO_HOST_NAME;
option_code_hash_lookup(&default_requested_options[6],
dhcp_universe.code_hash, &code, 0, MDL);
/* 8 */
code = D6O_NAME_SERVERS;
option_code_hash_lookup(&default_requested_options[7],
dhcpv6_universe.code_hash, &code, 0, MDL);
/* 9 */
code = D6O_DOMAIN_SEARCH;
option_code_hash_lookup(&default_requested_options[8],
dhcpv6_universe.code_hash, &code, 0, MDL);
for (code = 0 ; code < NUM_DEFAULT_REQUESTED_OPTS ; code++) {
if (default_requested_options[code] == NULL)
log_fatal("Unable to find option definition for "
"index %u during default parameter request "
"assembly.", code);
}
/* Initialize the top level client configuration. */
memset (&top_level_config, 0, sizeof top_level_config);
/* Set some defaults... */
top_level_config.timeout = 60;
top_level_config.select_interval = 0;
top_level_config.reboot_timeout = 10;
top_level_config.retry_interval = 300;
top_level_config.backoff_cutoff = 15;
top_level_config.initial_interval = 3;
top_level_config.bootp_policy = P_ACCEPT;
top_level_config.script_name = path_dhclient_script;
top_level_config.requested_options = default_requested_options;
top_level_config.omapi_port = -1;
#if defined (NSUPDATE)
top_level_config.do_forward_update = 1;
#endif
/* Requested lease time, used by DHCPv6 (DHCPv4 uses the option cache)
*/
top_level_config.requested_lease = 7200;
group_allocate (&top_level_config.on_receipt, MDL);
if (!top_level_config.on_receipt)
log_fatal ("no memory for top-level on_receipt group");
group_allocate (&top_level_config.on_transmission, MDL);
if (!top_level_config.on_transmission)
log_fatal ("no memory for top-level on_transmission group");
status = read_client_conf_file (path_dhclient_conf,
(struct interface_info *)0,
&top_level_config);
if (status != ISC_R_SUCCESS) {
;
#ifdef LATER
/* Set up the standard name service updater routine. */
parse = (struct parse *)0;
status = new_parse (&parse, -1, default_client_config,
(sizeof default_client_config) - 1,
"default client configuration", 0);
if (status != ISC_R_SUCCESS)
log_fatal ("can't begin default client config!");
do {
token = peek_token (&val, (unsigned *)0, cfile);
if (token == END_OF_FILE)
break;
parse_client_statement (cfile,
(struct interface_info *)0,
&top_level_config);
} while (1);
end_parse (&parse);
#endif
}
/* Set up state and config structures for clients that don't
have per-interface configuration statements. */
config = (struct client_config *)0;
for (ip = interfaces; ip; ip = ip -> next) {
if (!ip -> client) {
ip -> client = (struct client_state *)
dmalloc (sizeof (struct client_state), MDL);
if (!ip -> client)
log_fatal ("no memory for client state.");
memset (ip -> client, 0, sizeof *(ip -> client));
ip -> client -> interface = ip;
}
if (!ip -> client -> config) {
if (!config) {
config = (struct client_config *)
dmalloc (sizeof (struct client_config),
MDL);
if (!config)
log_fatal ("no memory for client config.");
memcpy (config, &top_level_config,
sizeof top_level_config);
}
ip -> client -> config = config;
}
}
return status;
}
/*
* client-conf-file :== client-declarations EOF
* client-declarations :== <nil>
* | client-declaration
* | client-declarations client-declaration
*/
int
read_client_conf(void)
{
FILE *cfile;
char *val;
int token;
struct client_config *config;
new_parse(path_dhclient_conf);
/* Set up the initial dhcp option universe. */
initialize_universes();
/* Initialize the top level client configuration. */
memset(&top_level_config, 0, sizeof(top_level_config));
/* Set some defaults... */
top_level_config.timeout = 60;
top_level_config.select_interval = 0;
top_level_config.reboot_timeout = 10;
top_level_config.retry_interval = 300;
top_level_config.backoff_cutoff = 15;
top_level_config.initial_interval = 3;
top_level_config.bootp_policy = ACCEPT;
top_level_config.script_name = client_script_name;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_SUBNET_MASK;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_BROADCAST_ADDRESS;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_TIME_OFFSET;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_CLASSLESS_ROUTES;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_ROUTERS;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_DOMAIN_NAME;
top_level_config.requested_options
[top_level_config.requested_option_count++] =
DHO_DOMAIN_NAME_SERVERS;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_HOST_NAME;
top_level_config.requested_options
[top_level_config.requested_option_count++] = DHO_DOMAIN_SEARCH;
if ((cfile = fopen(path_dhclient_conf, "r")) != NULL) {
do {
token = peek_token(&val, cfile);
if (token == EOF)
break;
parse_client_statement(cfile, NULL, &top_level_config);
} while (1);
token = next_token(&val, cfile); /* Clear the peek buffer */
fclose(cfile);
}
/*
* Set up state and config structures for clients that don't
* have per-interface configuration declarations.
*/
config = NULL;
if (!ifi->client) {
ifi->client = malloc(sizeof(struct client_state));
if (!ifi->client)
error("no memory for client state.");
memset(ifi->client, 0, sizeof(*(ifi->client)));
}
if (!ifi->client->config) {
if (!config) {
config = malloc(sizeof(struct client_config));
if (!config)
error("no memory for client config.");
memcpy(config, &top_level_config,
sizeof(top_level_config));
}
ifi->client->config = config;
}
return (!warnings_occurred);
}
